if you performed this reaction and produced 92.1 kj of energy, how many moles of water were also produced?

Answers

Answer 1

To calculate the number of moles of water produced in a reaction, we will need to know the balanced chemical equation for the reaction and the stoichiometry of the reactants and products.

The balanced equation will give us the mole ratio between the reactants and products, and the stoichiometry will give us the number of moles of each substance involved in the reaction. Once we have that information, you can use the mole ratio to calculate the number of moles of water produced.

One example of a reaction that produces 92.1 kJ of energy is the combustion of hydrogen gas (H2) with oxygen gas (O2) to form water vapor (H2O) and release heat energy:

2H2 + O2 -> 2H2O + heat energy (92.1 kJ)

In this reaction, 2 moles of hydrogen gas and 1 mole of oxygen gas are required to produce 2 moles of water vapor and 92.1 kJ of heat energy. To calculate the number of moles of water produced in this reaction, you can use the balanced chemical equation and the stoichiometry of the reactants and products.

As per the balanced equation, 2 moles of H2 reacting with 1 mole of O2 will produce 2 moles of H2O.

So, in this reaction 2 moles of water were produced.

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Related Questions

3. When neither air masses can overpower each other and may not move

for a long time.

1) warm front

2)cold front

3)occluded front

4)stationary front

Answers

When neither air mass can overpower the other and therefore cannot move the option 4- stationary front

A stationary front is a weather boundary where two air masses meet and neither one can overpower the other, resulting in little or no movement of the front. This can lead to prolonged periods of cloudy, damp, and often unstable weather. Warm fronts, cold fronts, and occluded fronts are all types of frontal systems that can move across a region, while stationary fronts tend to remain in a specific location for an extended period of time.

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two liquids are poured in a container and mixed. a solid forms and settled to the bottom of the container. what can you conclude?

Answers

When two liquids are poured in a container and mixed, the solid that is formed and settles to the bottom of the container is called a precipitate.

Precipitates formed in a chemical reaction are the solid products of the reaction. They are insoluble in nature and exists as ionic solids. They are so formed by the combination of cations and anions when two different liquids are poured together.

Not all aqueous solution mixtures form precipitates. The extent of precipitation depends on certain factors such as temperature, concentration of solution and buffer solutions used.

The precipitates settle at the bottom of the aqueous solution.

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how is it that atoms with more electrons, more to the right, can be smaller than those with fewer electrons, on the left side?

Answers

The atomic size is determined by the interaction of these two factors, the amount of protons and the shielding effect.

What are electrons?

The subatomic particles known as electrons orbit the atomic nucleus of an atom and are negatively charged. They are one of the basic building blocks of matter.

The atomic radius, also known as the separation between the nucleus and the outermost electrons, determines the size of an atom.

The number of protons in the nucleus, which defines the atomic number and, consequently, the number of electrons in the atom, as well as the electrons' energy level, are two parameters that have an impact on the atomic radius.

Because more electrons will occupy higher energy levels farther from the nucleus as the number of electrons grows, atoms with more electrons will typically have a bigger atomic radius than atoms with fewer electrons.

However, the amount of protons in the nucleus rises as you move across a period (left to right) in the periodic table, which intensifies the attraction of electrons to the nucleus. The atomic radius decreases as a result of the electrons moving in closer proximity to the nucleus.

Furthermore, as the number of electrons in an atom rises, the shielding effect of inner electrons rises as well. As a result, the outer electron will experience a reduced nuclear charge, which causes the electron to be further away from the nucleus and enlarges the atom.

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Ionic bonding
Chemistry

Answers

The images of the ionic bonds of the compounds is shown in the image attached.

What is ionic bonding?

If we are talking about the ionic bonding model, what we mean is that in this kind of bonding. there is the transfer of electrons from the metals to the non metals. In this process, the metal would be positively charged while the non metal would be negatively charged.

As such, in the case of the potassium bromide, we can see from the image that electrons are transferred from potassium to bromine while electrons are transferred from aluminum to chlorine.

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why is 2-chloro 2-methylbutane is more stable

Answers

The more stable secondary alkyl radical is easier to create, hence 2 chlorobutane is created quicker than 1 chlorobutane.

What is stability?

Chemical stability in chemistry refers to a chemical system's thermodynamic stability.

When a system is in its lowest energy state or in chemical equilibrium with its surroundings, thermodynamic stability occurs.

In this case, the primary alkyl halide is 1-chlorobutane, while the secondary halide is 2-chlorobutane.

As a result, the SN1 reaction will occur in the 2-chlorobutane more quickly than the 1-chlorobutane.

Since it is simpler to produce the more stable secondary alkyl radical, 2 chlorobutane is produced more quickly than 1 chlorobutane.

Thus, 2-chloro 2-methylbutane is more stable.

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At 598 K the rate constant for the decomposition of NO₂ is 0. 750 M⁻¹s⁻¹. When the temperature is raised to 751 K the rate constant is 19. 7 M⁻¹s⁻¹. What is activation energy (Ea) for this reaction, expressed as kJ/mol? Enter just a number with 3 significant digits in "kJ/mol"

Answers

The activation energy (Ea) for this reaction is 34.7kJ when the rate constant for the decomposition of NO₂ is 0.750M⁻¹s⁻¹ at 598K and the rate constant at 751K is 19.7 M⁻¹s⁻¹.

Given the initial temperature (t1) = 598K

The first rate constant (k1) = 0. 750 M⁻¹s⁻¹

The final temperature (t2) = 751k

The second rate constant (k2) = 19.7 M⁻¹s⁻¹

Rate constants are related to temperature and activation energy by the Arrhenius equation as: ki = Ae^-(Ea/RTi) where A is the pre-exponential factor, R is the universal gas constant = 8.314472 J/mol.K, T is the temperature, Ea is the activation energy and K is rate constant. The activation energy for a given reaction is not affected by temperature.

So, k2/k1 = Ae^-(Ea/RT2)/Ae^-(Ea/RT1)

log(k2/k1) = -Ea/R[1/T2 - 1/T1]

log(19.7 / 0.750) = -Ea/8.314[1/751 - 1/598]

log(26.26) = -Ea/8.314[-0.00034]

1.419 x 8.314 = 0.00034Ea

Ea = 11.8/0.00034 = 34705.93 = 34.7kJ

Hence the required activation energy (Ea) is 34.7kJ

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carbon dioxide is sold in steel cylinders under a pressure of approximately 20 atm. is there liquid co2 in the cylinder at the following temperatures? if not, what phase(s) is present?

Answers

Under pressure, gaseous CO2 can liquefy as long as its temperature is below the critical point, which is 31 °C (87,8 °F). A colorless fluid with roughly the same density as water is created when a substance is squeezed and chilled below the critical point.

What is CO2?When two oxygen atoms are fused with one carbon atom, the result is carbon dioxide. It is commonly referred to by its chemical formula, CO2, rather than by its name because it is almost as well-known as the chemical formula for water, H2O.Carbon dioxide serves as the link in the natural food chain that keeps plant and animal life mutually dependent. This gas, which is necessary for plants to survive, is released every time humans breathe. The separation of carbon from oxygen by photosynthesis occurs in plants. Our bodies require pure oxygen to survive, which is released by plants. By reversing the process, we create carbon dioxide once more by fusing oxygen with the carbon from the food we eat.The atmosphere of the planet contains 0.03 percent of CO2, an inert, colorless gas that is 1 1/2 times heavier than air. It lacks smell, tastes like sweet soda water, and is quite stable (difficult to separate).By burning fuels with a high carbon content, a frequent process, it is created in different amounts. The most prevalent fuel for combustion is oil, which, when combined with the right amount of air, burns to produce 15% or less CO2 in the flue gases of a CO2 plant. After combustion, the CO2 can be extracted from the exhaust gases and made available for the various industrial uses to which it can be put. This can be done by a straightforward procedure.Three types of CO2 are possible:

- as gaseous materials: for the food and beverage sectors

- liquid: in a pressure-containing storage tank

- as dry ice when it is solid (for cooling, blasting etc.).

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why do scientists measure levels of dissolved oxygen in water?

Answers

All aquatic life uses dissolved oxygen in surface water, hence this element is frequently analyzed to determine the "health" of lakes and streams. Both groundwater discharge and atmospheric oxygen enter streams.

The amount of oxygen that is dissolved in the water, or the amount of oxygen that is available to living aquatic organisms, is measured by the term "dissolved oxygen" (DO). We can learn a lot about the water quality of a stream or lake by measuring the amount of dissolved oxygen present.For many years, the USGS has been measuring water. No matter where in the United States the water is being researched, some measures are virtually always made, including temperature, pH, and specific conductance. Dissolved oxygen (DO), a measurement of how much oxygen is dissolved in the water, is another often used indicator that can reveal a lot about the measuement  of (water quality).

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Copper has a density of
8.96 g/cm³. If it has a
volume 30.5 mL, what is
the copper's mass?

Answers

Mass may be calculated by multiplying density by volume if you already know the density and the volume.

How much substance is present in a material for each unit of volume is known as the density of an item. As a result, the following formula may be used to determine how an object's mass, m,  density, ρ, and volume, V are connected.

ρ = m/V

where  ρ=8.96 and V=30.5 and m=copper's mass

By entering these values into the equation above, we obtain

8.96 = m/30.5

Cross multiplying results in

m = 8.96x30.5

m = 273.28 g

Consequently, mass of copper is 273.28 g

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What types of mixtures could be separated by decanting? Is laboratory equipment necessary
for decanting a mixture? Why or why not?

Answers

Answer:

Decanting can separate solid-liquid mixtures or mixtures of two immiscible liquids. 

Laboratory equipment is not needed to decant a mixture because one liquid is denser than the other liquid so they separate naturally

Explanation:

Decanting can separate solid-liquid mixtures or mixtures of two immiscible liquids. 

This is because decanting involves carefully pouring of a liquid from one container to another and as such, it can be used to separate immiscible liquids such as oil and water.

Pls help:)! Non polar molecules have what type of intermolecular forces?

Answers

Answer:

In Explanation

Explanation:

Nonpolar molecules have London Dispersion forces as their only intermolecular force. London Dispersion forces are weak attractive forces that exist between all types of atoms and molecules, including nonpolar ones. These forces are caused by the temporary redistribution of electrons within the molecule, which creates temporary dipoles (uneven distribution of electrons) that can attract other nearby molecules. London Dispersion forces are relatively weak compared to other types of intermolecular forces, such as hydrogen bonding and dipole-dipole interactions, but they can still have a significant effect on the properties of nonpolar molecules, such as their boiling and melting points.

(Please give brainlist)

Answer: Dipole-Induced Dipole Forces

Fuerzas de dipolo inducidas por dipolo

Explanation:

These occur between a polar molecule and a nonpolar molecule, and thus must describe solutions. The polar molecule with a permanent dipole induces a dipole moment in the non-polar molecule. The more polarizable the nonpolar molecule, the easier it is to induce a dipole, and so the greater the interaction.

Espanol:

Estos ocurren entre una molécula polar y una molécula no polar y, por lo tanto, deben describir soluciones. La molécula polar con un dipolo permanente induce un momento dipolar en la molécula no polar. Cuanto más polarizable es la molécula no polar, más fácil es inducir un dipolo y, por lo tanto, mayor es la interacción.

Here are some last minute questions I need help with!

Answers

The compound that has the molecular formula C₆H₁₀O₅ is the polymer molecule cellulose.

What is a Lewis structure?

The electrons of the atoms bound together in a compound are represented using a Lewis structure. Between the two bound atoms, electrons are depicted as either dots or lines. The position of the various elements and the type of the relationship is revealed by the structure.

Lewis dot structures also show lone pairs and electron bond pairs.

The given compound whose formula is C₆H₁₀O₅ has a six-membered ring and is cellulose. It is a polymer of glucose. The monomer glucose unit is linked to each other by glycosidic bonds with the elimination of a water molecule.

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at what gas temperature te would the average translational kinetic energy of a hydrogen molecule be equal to that of an oxygen molecule in a gas of temperature 300 k?

Answers

At a gas temperature of 300 K, the average kinetic energy of a hydrogen molecule is equal to that of an oxygen molecule.

A molecule or gas particle's average kinetic energy is proportional to its absolute temperature, and this relationship is represented by the equation [tex]KE_{avg}=\frac{3 k__BT}{2}[/tex]. Here, [tex]k_B[/tex] is used to represent the Boltzmann constant, and T is used to represent the temperature.

In the given situation, the average kinetic energy depends mostly on the gas molecule's temperature and not its type. At the same temperature, [tex]\mathrm{KE_{avg}\;of\;oxygen=KE_{avg}\;of\;Hydrogen}[/tex]. Then, the temperature of hydrogen is also equal to that of the temperature of oxygen. Therefore, [tex]\mathrm{T_{O_2}=T_{H_2}}=\mathrm{300\;K}[/tex].

The required answer is 300 K.

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3. If Earth's glaciers were to melt, what would be the most likely effect Florida?

A. coastal flooding
B. till deposition
C. increased acid rain
D. an out wash plain

please answer!!

Answers

Answer:

An out wash plain

Explanation:

"Well if glaciers were to most likley melt wit would have a big affect on the world. But on Florida the affect would be as everybody would expect, a flash flood, with high water's and everything under water. AND there would most lilkley be something in the glacier. Not highly sure about it though"

Answer: A. coastal flooding. If Earth's glaciers were to melt, it would cause sea levels to rise, which would lead to coastal flooding in Florida and other low-lying coastal areas.

(a) what factors determine whether a collision between two molecules will lead to a chemical reaction? (b) ac- cording to the collision model, why does temperature affect the value of the rate constant?

Answers

The collision's energy and the way the molecules are positioned at the time of contact. The molecules move faster and possess more KE at extremely high temperatures. Consequently, there are more collisions.

What happens when reaction happens?

one or more new elements are formed as a result of the reorganization of the atoms or molecules of two substances when come into contact. Electrons of one material interact with some of those of another to produce chemical reactions.

What is an example of a chemical reaction?

Reactants participate in a chemical reaction and turn into byproducts through a chemical change in a chemical reaction. Inhaling oxygen, by instance, results in the creation of atmospheric co2, water, and energy when combined with glucose.

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use the modified arrhenius theory to write an equation and determine if Ba(OH)2 is an acid or base

Answers

It is a base because in solution it produces two hydroxide anions.

What is Arrhenius theory?

The Arrhenius theory, proposed in 1887 by the Swedish scientist Svante Arrhenius, states that acids dissociate in water to produce electrically charged atoms or molecules known as ions, one of which is a hydrogen ion (H+), and that bases ionize in water to produce hydroxide ions (OH). Acid, according to the Arrhenius theory, is a substance that releases H+ ions when dissolved in aqueous solution. The concentration of H+ ions in the solution rises. The base is a substance that, when dissolved in aqueous solution, ionizes the OH- ion.

Here,

The same logic holds true for the reaction of sulfuric acid and barium hydroxide. This reaction involves an Arrhenius acid, which generates two hydrogen cations in solution, and an Arrhenius base, which generates two hydroxide anions in solution.

It is a base as it generates two hydroxide anions in solution.

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at ph 7.4, most of the common amino acids have a net charge close to…

Answers

Since the isoelectric point (pI) of the majority of common amino acids is 7.4, the pH is neutral. The balance of acidic and basic groups on an amino acid determines its pI, which is the pH at which the amino acids

The building components of proteins are amino acids. They consist of an alpha carbon atom in the centre, to which bonds have been formed with amino, carboxyl, hydrogen, and a special side chain (R group). There are 20 different kinds of amino acids with distinct R groups that may be integrated into proteins. A broad variety of interactions between amino acids in a protein are made possible by these R groups, which also give amino acids their distinctive characteristics, such as being hydrophobic or hydrophilic. A protein's three-dimensional shape and function are determined by the amino acid sequence of the protein. In the body, proteins carry out tasks including catalysing metabolic processes, reproducing DNA, reacting to stimuli, and transporting chemicals.

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A substance decomposes with a rate constant of 9. 05 x 10-45-1. How

long does it take for 13. 0% of the substance to decompose?

Answers

The chemical must break down within 283 seconds.

The fact that the rate constant "k" is expressed in units of "s1" indicates that the reaction is a first-order one.

We also have the following for the first-order process from chemical kinetics:

equation is in attached image

Where,

K is the reaction's rate constant.

R0 = starting reactant concentration

R=remaining reactant concentration at time t.

t is the length of time needed for the change to take place.

Considering the query we have,

[tex]K=\frac{2.303}{t} log \frac{R_{0}}{R}\\K=9.05 {*} 10^{-4}S^{-1}[/tex]

R₀=100g

R=100-13=87g

By changing the necessary variables in equation (1), we obtain;

[tex]t=\frac{2.303} k *log \frac{100}{87}\\\\\\t=\frac{2.303}{9.05*10^{-4}} (log100-log87)\\\\t=\frac{2.303} {9.05*10^{-4}} *1.113\\\\t=\frac{2.563}{9.05}*10^{4} sec\\\\t=0.283*10^{4} sec\\\\t=283sec[/tex]

Therefore, 283 seconds are needed for the chemical to break down.

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a chemist wants to make 5.0 moles of (nh4)3po4 in a formation reaction starting with the constituent elements. how many moles of hydrogen gas are needed

Answers

A chemist wants to make the 5.0 moles of (NH₄)₃PO₄ in the formation of the reaction starting with the constituent elements. The moles of hydrogen gas are needed is 60 moles.

The chemical name of the compound is (NH₄)₃PO₄ is ammonium phosphate.

1 mole of (NH₄)₃PO₄ requires the 12 moles of the hydrogen

1 mole = 6.022 × 10²³ atoms / molecules , this is Avogadro's constant

1 mole of (NH₄)₃PO₄ =  12 moles of the hydrogen

5 moles of (NH₄)₃PO₄ = 5 × 12 moles of the hydrogen

5 moles of (NH₄)₃PO₄ = 60 moles of the hydrogen .

Thus, the moles of hydrogen is 60 moles.

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based on your theoretical yield, what is the percent yield of ammonia if only 8.33 grams of ammonia is produced?

Answers

The percent yield of ammonia would be 83.3%.

The percent yield of ammonia is calculated by dividing the actual yield (8.33 g) by the theoretical yield (10 g) and multiplying by 100. The result is 83.3%, which is the percent yield.

The percent yield of ammonia is a measure of efficiency for a reaction, calculated by dividing the actual yield of the product by the theoretical yield of the product, and multiplying the result by 100. In this case, the actual yield of ammonia was 8.33 grams, while the theoretical yield was 10 grams. By dividing 8.33 by 10 and multiplying by 100, the percent yield of ammonia was determined to be 83.3%. This indicates that the reaction was 83.3% efficient, with the remaining 16.7% unaccounted for.

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answer the questions below about the highlighted atom in this lewis structure: in how many sigma bonds does the highlighted atom participate? in how many pi bonds does the highlighted atom participate? what is the orbital hybridization of the highlighted atom?

Answers

Nitrogen has one sigma bond, 2 pi bonds, and one lone pair. So, its steric number is also sp and its hybridization is sp.

To find the hybridization of any atom, we need to find its steric number. Steric number is the sum of sigma bonds formed by that molecule (or the number of atoms directly attached to the atom) and the number of lone pair of electrons present on that atom.Except for the carbon forming triple bond with nitrogen, all other carbons in diagram have 4 sigma bonds, and 0 pi bond, and are
In sp3 hybridization.The carbon making triple bond with nitrogen has 2 sigma bonds (one with N, one with other C), 2 pi bonds (both with N). So, its steric number is 2 (due to 2 sigma bonds), and its hybridization is sp.Nitrogen has one sigma bond, 2 pi bonds, and one lone pair. So, its steric number is also sp and its hybridization is sp.

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Agree or Disagree? Why?
While standing on the
beach during the
daytime, the breeze
always blows from the
land, because the land
is cooler than the sea
during the daytime.

Answers

Answer:

Explanation:

I'm sorry, but I disagree with the statement because the direction of the breeze is not solely determined by the difference in temperature between the land and sea. The direction of the breeze is influenced by a variety of factors such as the pressure system, the prevailing wind patterns and the shape of the land. During the daytime, sea breeze is a common phenomenon, which is caused by the land heating up faster than the ocean, and as the hot air rises, it creates a low-pressure system over the land, drawing in cooler air from the ocean. So, the breeze can blow from the land or sea during the daytime, it's not always blowing from the land.

cience

decribe the exual reproductive of flowering plant like the gumamela flower by
creating your own tory

Answers

By using the pollen from male flowers to fertilize female blooms, the gumamela reproduces.

One variety of hibiscus is the gumamela. Pollination allows the wild hibiscus species to procreate. When pollen from male flowers is spread to female flowers, the process is known as pollination. This is usually done by the wind or other animals. To draw pollinators that will aid in reproduction, large, vibrant flowers are frequently used.

Bees, butterflies, and birds are some of the more popular pollinators, though there are many other varieties as well. These critters are drawn to the nectar in flowers, which provides them with the energy to fly or buzz from one flower to the next. Pollen, which eventually results in fertilization and reproduction, is dispersed when they are moving around collecting nectar.

In rare circumstances, wind can also assist in pollination. In general, the reproduction process in wild hibiscus species is a complicated one that involves a wide variety of organisms and environmental conditions.

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you are working with a specific enzyme-catalyzed reaction in the lab. you are a very careful experimentalist, and as a result, at the beginning of each of your experiments, you measure the temperature in the lab. on days 1 through 5, the temperature in the lab was 20oc. today is day 6 of your experiment, and the temperature in the lab is 30oc. how do you predict that this will alter the rate of your enzyme-catalyzed reaction?

Answers

The rate of enzyme-catalyzed reactions typically increases as increase in temperature. Therefore, it is possible that the rate of your enzyme-catalyzed reaction will be faster at 30°C than it was at 20°C.

What are different types of catalysts?

Catalysts can be classified as homogeneous, heterogeneous, or enzymatic. Homogeneous catalysts live in the same phase as the reactants, while heterogeneous catalysts exist in a different phase than the reactants.

What is enzyme catalysis?

Enzyme catalysis is the upsurge in the rate of a process by a biological molecule, an enzyme. Most enzymes are proteins, and most such processes are chemical reactions. Within the enzyme, generally catalysis occurs at a localized site, called the active site.

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How many hydrogen bonds can C2H5OH make

Answers

2H5OH, also known as ethanol, is capable of forming hydrogen bonds. The ethanol molecule has a hydroxyl group (-OH) and a hydrogen atom on the carbon atom. The hydroxyl group can act as an electron donor and form hydrogen bonds with other electron-accepting groups such as nitrogen and oxygen atoms. The hydrogen atom can also act as an electron acceptor and form hydrogen bonds with electron-donating groups such as nitrogen and oxygen atoms.

In ethanol, the hydroxyl group is capable of forming one hydrogen bond with another molecule. In addition to that, the hydrogen atom on the carbon atom can form a hydrogen bond as well, So in total, C2H5OH can form 2 hydrogen bonds.

A reaction produces 88. 5 mol H2. What would the volume of this much Hą be at STP? 2 points Vour answer​

Answers

A process yields 88. 5 mol H2. 88.5 moles of H2 at STP have a volume of 24,564.8 L (24.564 m3). A system's volume is a crucial and detailed parameter for defining its thermodynamic state.

The Ideal Gas Law, which says that PV = nRT, may be used to determine the volume of a gas at standard temperature and pressure (STP), where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. The temperature and pressure are both equal to 1 atm at STP (273.15 K).

Therefore, we can apply the following calculation to get the volume of 88.5 moles of H2 at STP:

V = nRT / P

V is equal to (88.5 mol) x (8.314 J/mol K) x (273.15 K) /. (1 atm)

V = 24,564.8 L

Therefore, at STP, 88.5 moles of H2 have a volume of 24,564.8 L (24.564 m3).

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The production of smog from the chemical NO requires _____
chlorine
nitrogen
water
oxygen
cfcs

Answers

Oxygen
Because nitrogen monoxide when add oxygen u get nitrogen dioxide

write the balance molecular and net ionic equationf for the reaction between almunimum metal and silver nitrate. identify the oxidation and reduction half-reactions

Answers

The balanced chemical reaction is Al + 3AgNO3 → Al (NO3)3 + 3Ag.

A balanced chemical equation though has the identical number of atoms from every type inside the reaction on both the reactant chemical equation output sides. In a balanced chemical equation, both the mass and the change were equal.

An organic organization may adjust to changes in its surroundings very easily. It is distinguished by low complexity, low centralization, as well as low formalization. A mechanistic organization, on the other hand, is distinguished by great complexity, high centralization, as well as high formalization.

Thus, the balanced chemical reaction will be Al + 3AgNO3 → Al (NO3)3 + 3Ag.

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Do my science project for me pls
I would do it myself but I don't have the materials to do it :(

Answers

Answer: Okay, what do you have todo? And what do you need todo it?

Explanation: I'll do it for you.

in this reaction, if a total of 10.0 g of zinc and hydrochloric acid react completely, what is the total mass of the products produced? zn(s) 2hcl(aq) zncl2(aq) h2(g) select one: a. exactly 10.0 g b. greater than 10.0 g c. less than 10.0 g d. not enough information to tell

Answers

The total mass of the products is 21.004 g. The correct option is C.

Observe the balanced equation and use the mol ratios to determine the mols of product (zinc chloride) and hydrogen (hydrogen) produced. Then use the molar mass of zinc chloride and hydrogen to convert mols to grams.

The balanced chemical reaction is given as,

Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)

10.0 g Zn x 1 mol Zn / 65.4 g = 0.152 mols of Zn

0.152 mols Zn x 1 mol ZnCl₂ / 1 mol Zn = 0.152 mols ZnCl₂ produced

Convert the mass of zinc chloride into mass.

0.152 mols ZnCl₂ x 136 g / mol = 20.7 g ZnCl₂ produced

0.152 mols Zn x 1 mol H2 / mol Zn = 0.152 mols H₂

Convert the mass of hydrogen into mass.

0.152 mols H₂ x 2 g / mol = 0.304 g H₂ produced

Total mass of the products is 20.7 + 0.304 = 21.004 g

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Answer:

B. greater than 10.0 g

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jasper company has variable costs per unit of $24, fixed costs of $315,000, and a break-even point of 45,000 units. what will be the new break-even point in units if variable costs decrease by $5 per unit and fixed costs increase by $270,000? identify the techniques customer driven marketing for bakery business the most common source of database failures in organizations is: group of answer choices inadequate budget. lack of planning. failure to implement a strong database administration function. inadequate hardware. A student wrote the following code segment, which displays true if the list myList contains any duplicate values and displays false otherwise.The code segment compares pairs of list elements, setting containsDuplicates to true if any two elements are found to be equal in value. Which of the following best describes the behavior of how pairs of elements are compared?answer choicesThe code segment iterates through myList, comparing each element to all other elements in the list.The code segment iterates through myList, comparing each element to all subsequent elements in the list.The code segment iterates through myList, comparing each element to the element that immediately follows it in the list.The code segment iterates through myList, comparing each element to the element that immediately precedes it in the list. which characteristics do the ganges river and indus river have in common Brian May is best known as the guitarist of Queen, but he is also an accomplished what? 3. Create an expression that has a value greater than 6x 4 when x = 5/24. Create an expression that has a value less than 2 5x when x = -3/4 Nuru Meda Golf and Driving Range plc was opened on March 1 by Nuru. Thefollowing selected events and transactions occurred during March.Mar. 1 Invested Br.120,000 cash in the business in exchange for ordinaryshares.3 Purchased Mechare Medas Golf Land for Br. 76,000 cash. The priceconsists of land Br. 20,000, building Br. 44,000, and equipment Br.12,000. (Make one compound entry.)5 Advertised the opening of the driving range and miniature golf course,paying advertising expenses of Br. 3,200.6 Paid cash Br. 2,480 for a 1-year insurance policy.10 Purchased golf equipment for Br.5,000 from Young Company, payable in30 days.18 Received golf fees of Br.2,400 in cash.25 Declared and paid a Br.2,000 cash dividend.30 Paid salaries and wages of Br.1,800.30 Paid Young Company in full.31 Received Br. 1,500 of fees in cash.Snyder uses the following accounts: Cash, Prepaid Insurance, Land, Buildings,Equipment, Accounts Payable, Share CapitalOrdinary, Dividends, ServiceRevenue, Advertising Expense, and Salaries and Wages Expense.Instructions kat's doctor warns that prolonged and elevated levels of adrenaline and other anxiety-induced substances will increase kat's risk for many diseases. which theory of aging does her doctor espouse? start of a classic question in shakespeare nyt crossword Calculate the constants a1 and a2 in terms of the initial conditions, and thus verify Eqs. (9.34) and (9.35) for the overdamped case. Workers in an office of 40 staff were asked their favourite type of take-away. The results are summarised in the table. Take-away Frequency Angle Pizza 3 a Curry 12 b Fish & chips 7 c Kebab 3 d Other 15 e Work out the size of each angle to draw a pie chart. Bill Nye: Structure 12. All 206 of our __________________________ are structures.13. Bases are built _____________________________ so that they can support the structure.14. When pulling on a rope you are giving it --------------------------------------15. Tall buildings are _____________________________so they will not fall in an earthquake. when the data have the properties of interval data and the multiplication or division of two values is meaningful, the variable has which scale of measurement? 1 1/5 - 1/3 greater or less than 1 act-utilitarianism says that we should do whatever action would result in the greatest net happiness. what would act-utilitarianism say about occasionally playing video games? 30 POINTS PLEASE!!!!!!!!!!!!!!!!!!!! During the 1820s and 1830s, manufacturing and trade were the primary economic activities in the - Gulf Coastal Region Gulf Coastal Region southern plantation towns southern plantation towns western United States western United States cities of the Northeast Which of the following Excel equations will identify the number of married individuals under the age of 30? based on research findings, explain how the organ system normal anatomy contributes to its physiology. which nursing interventions indicate client care that supports physical functioning? select all that apply. one, some, or all responses may be correct.