Answer:
3.66 moles of Zinc Oxide are consumed
Explanation:
Based on the reaction:
C + 2ZnO → 2Zn + CO₂
Where 1 mole of Carbon reacts with 2 moles of Zin Oxide to produce 2 moles of Zinc and 1 mole of Carbon Dioxide.
To solve this question, we must convert the moles of carbon added to the moles of Zinc Oxide that react using the chemical equation (1mol C = 2mol ZnO):
1.83 moles C * (2mol ZnO / 1mol C) =
3.66 moles of Zinc Oxide are consumedZr + O ⇒
B + O ⇒
Zn + C ⇒
Co + I ⇒
Mg + Br ⇒
WHAT- WHAT GRADE R YOU IN 0,0
350.0 ML of air is at 23.0°C what is the volume at 90.0°C
Answer:
V=0.430 Liters
Explanation:
First off you need to convert ml to l and celsius to kelvin, in order for them to be in the S.I.
So, 350.0mL is 0.350 L and 23.0 C is (273.15+23=) 296.15 K (you can ignore the 0.15)
From the equation pV=nRT, lets name this equation (1), we can tell that the number of moles, pressure, and R, stay the same. The only thing changing is the volume, and temperature.
With the information given, let's figure out the pressure. From equation (1) if we solve it for the pressure of the gas, p=nRT/V => p=nR*296.15/0.350 => p=846.15 *nR
Now, we have to figure out the volume of the gas at 90.0 C (363.15 K), and solve equation (1) for volume, using the pressure we previously found.
v=nRT/p => v=nR*363.15/846.15*nR => (the nR's from top and bottom go away) v=0.429 L
Since we used 273.15 for the conversion of celsius to Kelvin, we could round up the number to
V=0.430 Liters
Cyanobacteria, also known as blue-green algae, are a kind of bacteria found in lakes. These organisms make their own food through photosynthesis. Small animals including mayfly larvae eat the cyanobacteria, and small fish such as yellow perch eat the larvae. The small fish provide food for larger fish, such as walleye.
Choose the level of the food pyramid that represents the energy role of cyanobacteria in the lake ecosystem.
A ballon is filled with 1.22 L of gas at 286 K is heated until the volume is 2.86 L while the pressure remains constant. What is the temperature of the gas in kelvin?
Answer:
670.45 K
Explanation:
Given that,
Initial volume, V₁ = 1.22 L
Initial temperature, T₁ = 286 K
Final volume, V₂ = 2.86 L
We need to find the new temperature of the gas. The relation between the volume and the temperature is given by :
[tex]\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}\\\\T_2=\dfrac{V_2T_1}{V_1}\\\\T_2=\dfrac{2.86\times 286}{1.22}\\\\T_2=670.45\ K[/tex]
So, the new temperature of the gas is equal to 670.45 K.
can i get a snap i could send a link to, to do a few chem 1 assignments i could award more points
Answer:The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound.
Explanation:
c4h8o3 lewis structure
Answer:
what
Explanation:
ummm I... . .. .. . . . . . . . . .
Which situation has given to a trait that could be passed on to offspring ?
Answer:
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.
Explanation:
Plss markk me Brainlyist
Zach invited his friend Sydney to a pool party over the weekend. Sydney informed Zach that the climate was supposed to be rainy over the weekend and suggested that he change his plans. Zach explained to Sydney that she had misused the word “climate” and she should have used the word “weather” instead. Which of the following statements accurately clarifies the confusion between Zach and Sydney?
A). Zach is correct; the weather for this area is typically tropical and wet.
B). Sydney is correct; there has been an abundance of rainfall within the last month, changing the climate of this particular area.
C). Zach is correct; the climate of an environment is determined by patterns in weather conditions over an extended period of time.
D). Sydney is correct; the climate of an environment can change constantly based on weather, wind, and front patterns in the area.
Answer:
C
Explanation:
Common sense
the provided balanced equation applies to the reaction that takes place between lithium, hydroxide and sulfuric acid. 2LiOH + H2SO4 --> Li2SO4 + 2H2O.
If the reaction begins with 26.7 grams of lithium hydroxide (LiOH) and 164.048 grams of sulfuric acid (H2SO4), how many grams of lithium sulfate (Li2SO4) is produced? Assume 100% yield. Round your answer to the nearest tenth of a gram
Answer:
About 60 grams.
Explanation:
The on point answer is 61.28 grams.
How many moles are there in 34.5g of calcium phosphate?
Which would easily give up more electrons during bonding? Use Periodic Table.
Answer:
I'm pretty sure that it's lithium because it gives up one of their 3 electrons, so li
How is saturn like earth In any ways?
Answer:
Its axis is tilted by 26.73 degrees with respect to its orbit around the Sun, which is similar to Earth's 23.5-degree tilt. This means that, like Earth, Saturn experiences seasons. Like Jupiter, Saturn is made mostly of hydrogen and helium.
Explanation:
Thats all I could think of, please mark brainliest
Pt2 science......
Select correct answer ♡!
Acids are what and can destroy your skin and bones.
Answer:
Yes
Explanation:
Hydrofluoric acid (HF) differs from other acids because the fluoride ion readily penetrates the skin, causing destruction of deep tissue layers, including bone.
if the hydrogen ion concentration [H+] in a solution is 1.87 x 10^-11M what is the [OH-]
By using pH formula, the concentration of hydroxyl ion [OH-] will be 5.3 ×[tex]10^{-4}[/tex] M.
What is pH?
The pH scale is a measurement of hydrogen ion concentration that is used to determine the acidity as well as alkalinity of a solution.
Calculation of [OH-] by using formula of pH.
Given data:
[H+] = 1.87 x [tex]10^{-11} M[/tex]
[OH-] = ?
Calculation of [OH-] is shown below:
It can be calculated by using the formula:
pH = -log [H+]
Put the value of concentration of hydrogen ion [H+] in above formula.
pH = -log (1.87 x [tex]10^{-11} M[/tex])
pH = -log (1.87) -log ( [tex]10^{-11} M[/tex])
pH = -0.27 +11
pH = 10.73
Now, use the formula, pH +pOH = 14
pOH = 14 - pH
pOH = 14 - 10.73
pOH = 3.27
Now, use formula pOH = -log [OH-]
[OH-] = [tex]10^{-pOH}[/tex]
[OH-] = [tex]10^{-3.27}[/tex]
[OH-] = 5.3 ×[tex]10^{-4}[/tex] M
Therefore, the concentration of hydroxyl ion [OH-] will be 5.3 ×[tex]10^{-4}[/tex] M.
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WHAT INVESTMENT OF A $125 WOULD HAVE THE MOST LASTING VALUE FOR YOUR FUTURE?
A pair of jordans
Some nice cologne or perfume
3 college credits at MCC BAG
a dinner with 2 or 3 people
Answer:
a pair of jordans
Explanation:
pls show ur work will mark the brainliest
Answer:
M = 0.47
Explanation:
1 - Turn grams to moles using molar mass:
16g NaOH × 1 mol NaOH / 40g NaOH = 0.4 mol NaOH
2- Turn milliliters to liters:
855mL × 1 L / 1000mL = 0.86 L
3- Use formula which is M = moles of solute / liters of solvent:
M = 0.4 mol NaOH / 0.86 L = 0.47
correctly label the picture with the correct phase
Answer:
solid goes on the first on and liquid goes on the sceond one
Determine which molecule in each pair has the stronger intermolecular forces. Explain why. The main reason that NH3 has [ Select ] intermolecular forces than CH4 is that NH3 [ Select ] . The main reason that NO2 has [ Select ] intermolecular forces than CO2 is that NO2 [ Select ] . The main reason that CS2 has [ Select ] intermolecular forces than CO2 is that CS2 [ Select ] .
Answer:
See explanation
Explanation:
As for NH3 and CH4, the former is a polar molecule and possess a dipole. Hence, in addition to dispersion forces, dipole-dipole interaction as well as hydrogen bonding creates a stronger intermolecular interaction than in nonpolar CH4 where only dispersion forces are in operation.
Between NO2 and CO2, the former possesses a dipole moment while the later does not. As a result of that, dipole interaction are in operation in NO2 while only dispersion forces are n operation in CO2.
Between CO2 and CS2, the both molecules are nonpolar but CS2 has a greater molecular mass than CO2. Recall that the greater the molecular mass of a substance the greater its magnitude of intermolecular forces.
Taking into account the intermolecular forces, you get that:
The main reason that NH₃ has weaker intermolecular forces than CH₄ is that NH₃, being nonpolar, possesses London Dispersion Forces, while CH₄ possesses the Hydrogen Bonding forces.The main reason that NO₂ has the same intermolecular forces than CO₂ is that in NO₂ and CO₂ there are London forces because they are nonpolar molecules. The main reason that CS₂ has the same intermolecular forces than CO₂ is that CS₂ in CS₂ and CO₂ there are London forces because they are nonpolar molecules.Intermolecular forces or bonds are those interactions that hold molecules together. These are electrostatic forces.
Van der Waals forces are weak attractions that hold electrically neutral molecules together. At some point these molecules present an induced dipole, that is, the molecule acquires a partially positive and a partially negative charge momentarily, causing them to attract each other. They are Van de Waals forces: Dipole - Dipole Forces, London Forces, Ion - Dipole Forces.
London Dispersion Forces: occurs between nonpolar molecules due to the movement of electrons. At some point there are more electrons to one side, which, being close to another atom or molecule, the electrons of the second are repelled, originating two instantaneous dipoles, which originate an attractive force. In summary, this type of force occurs because when two molecules approach, a distortion of the electronic clouds of both is originated, generating in them, transient induced dipoles, due to the movement of the electrons, thus allowing them to interact with each other. They are very weak forces.Ion-ion forces: It is the attraction between two ions of different charges: cations (positively charged ion) and anions (negatively charged ion). That is, it occurs between different charged molecules that will tend to form an electrostatic bond between the ends of opposite charges due to the attraction between them.Ion-dipole forces: these are forces of attraction between an ion (an atom that has lost or gained an electron, so it has a charge) and a polar molecule. A molecule is a dipole when there is an asymmetric distribution of electrons because the molecule is made up of atoms of different electronegativity. The ion then binds to the part of the molecule that has its opposite charge: the positive end of the polar molecule is oriented towards the anion (negatively charged ion) and the negative end of the polar molecule is oriented towards the cation ( positively charged ion).Dipole-dipole forces: dipole-dipole forces are forces of attraction between polar molecules. These molecules attract when the positive end of one of them is close to the negative of the other.Hydrogen bonds: they are a type of dipole-dipole force. In this interaction, a molecule that presents hydrogen interacts with another that presents an atom with high electronegativity, such as oxygen, fluorine or nitrogen (O, F, N). In this way, between the hydrogen, which has a low electronegativity and the electronegative atom, an interaction is established, due to their opposite charges.The relative order of magnitude of the intermolecular forces is:
Ion-ion forces> Ion-dipole forces> Hydrogen bonds> Dipole-dipole forces> London Dispersion Forces
Taking into account all the above, it can be said that:
The main reason that NH₃ has weaker intermolecular forces than CH₄ is that NH₃, being nonpolar, possesses London Dispersion Forces, while CH₄ possesses the Hydrogen Bonding forces.The main reason that NO₂ has the same intermolecular forces than CO₂ is that in NO₂ and CO₂ there are London forces because they are nonpolar molecules. The main reason that CS₂ has the same intermolecular forces than CO₂ is that CS₂ in CS₂ and CO₂ there are London forces because they are nonpolar molecules.Learn more:
https://brainly.com/question/17111432?referrer=searchResultshttps://brainly.com/question/14220340?referrer=searchResultsThe form in which the chemical energy is stored in cells during photosynthesis
A) Photosynthesis
B)Products
C)Chloroplasts
D)Glucose
In test tube 3, 3 mL of .002 M Fe(III) solution is combined with 7 mL of .02 M 5-sulfosaliclic acid (SSA) solution. What is the mole fraction of SSA in the test tube
Answer:
0.96
Explanation:
Number of moles of Fe(III) = 3/1000 * 0.002 M = 6 * 10^-6 moles
Number of moles of SSA = 7/1000 * 0.02 = 1.4 * 10^-4 moles
Total number of moles = 6 * 10^-6 moles + 1.4 * 10^-4 moles
Mole fraction of SSA = number of moles of SSA/ total number of moles.
Mole fraction of SSA = 1.4 * 10^-4 moles/ 6 * 10^-6 moles + 1.4 * 10^-4 moles
Mole fraction of SSA = 0.96
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Which properties are characteristic of true solutions? (Select all that apply.)
The light beam is unaffected.
The particles are larger than 10 -8 cm.
The particles are dissolved.
The particles are suspended indefinitely.
Answer:
The correct answer is the last option
Explanation:
29 mols of na2So4 is how many grams
Answer:
[tex]4118\ g[/tex]
Explanation:
[tex]We\ are\ given,\\No.\ of\ moles\ of\ Na_2SO_4\ provided=29\ moles\\Hence,\\Now,\\Lets\ calculate\ the\ Gram\ Molecular\ Mass\ of\ Na_2SO_4.\\We\ know\ that,\\Gram\ Atomic\ Mass\ of\ Sodium(Na) \approx 23\ g\\Gram\ Atomic\ Mass\ of\ Sulphur(S) \approx 32\ g\\Gram\ Atomic\ Mass\ of\ Oxygen(O) \approx 16\ g\\Hence,\\We\ observe\ that,\\One\ molecule\ of\ Na_2SO_4\ is\ made\ up\ of\ 2\ Sodium\ Atoms,\ 1\\ Sulphur\ Atom\ and\ 4\ Oxygen\ Atoms.[/tex]
[tex]Hence,\\Gram\ Molecular\ Mass\ of\ Na_2SO_4=2*(GAM\ of\ Na)+1*(GAM\ of\ S)\\+4*(GAM\ of\ O)\\=2*23+1*32+4*16\\=46+32+64\\=46+96\\=142\ g[/tex]
[tex]Hence,\\We\ also\ know\ that,\\Mass\ of\ A\ Sample=No.\ of\ moles*Gram\ Molecular\ Mass\\Hence,\\Mass\ of\ 29\ moles\ of\ Na_2SO_4=29*142=4118\ g[/tex]
Answer:
4118.2
Explanation:
Given: 29 moles of na²[tex]So^{4}[/tex]
To find: In grams.
Solution: Wrong
If 1 na²[tex]So^{4}[/tex] is 142 grams, then 29 grams will be found if a set of fraction has been set up;
Let [tex]"x"[/tex] be the variable
[tex]\frac{142}{1} = \frac{29}{x}[/tex]
Cross multiply
[tex]\frac{142}{29}[/tex] [tex]= 4.9[/tex]
Correct Solution
Multiply 29 by 142 = 4118
Vertical columns in the periodic table are called ______ of elements and have similar properties.
groups
period
NO LINKS07.02 LC)
What happens when a particle and its antiparticle collide? (2 points)
O They combine nuclei
O They break into quarks
They are converted to energy
O They become antimatter
When a particle and its antiparticle collide they are converted to energy.
What is collide?A colloid would be a mixture in which a component made up of insoluble particles that are scattered at a microscopic scale is suspended within another component.
What is energy?In order to accomplish work and to produce heat as well as light, energy must be supplied to a body or even to a physical system. Energy would be the quantitative attribute that does this. Energy would be transformed in form but cannot be created and destroyed, according to the rule of conservation of energy.
Annihilation occurs when a particle collides including its anti-particle. The particle and its antiparticle's whole mass are transformed back into energy to produce two gamma-ray photons. You won't find antiparticles in everyday stuff since they typically barely last for a tiny amount of time until annihilation takes place.
Therefore, the correct answer will be option (c).
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what kind of elements form ionic compounds?
Answer:
Ionic compounds generally form between elements that are metals and elements that are non metals. For example, the metal calcium (Ca) and the non metal chlorine (Cl) form the ionic compound calcium chloride (CaCl2). In this compound, there are two negative chloride ions for each positive calcium ion.
Explanation:
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How many oxygen molecules are in a flask that contains 1.43 grams of oxygen?
Answer:
0.08937835168818843
Explanation:
1 grams Oxygen is equal to 0.062502343837894 mole.
PLEASE HELP!!!
Explain how an electric car might still run on fossil fuels.
Answer:
Explanation:
When you use electricity to charge your car, you can integrate renewable resources like solar into the fueling process. Without solar, your electric vehicle is still effectively running off of fossil fuels – it's just the fossil fuels utilized at the power plant and not within your engine.
Fossil fuels include substances like natural gas, coal, and oil. It is possible for electric cars to run on these fossil fuels. Fossil fuels like coal are burnt up to generate electricity. So when cars run on electricity, they are indirectly tapping into fossil fuels.
As the world continues to seek measures to reduce carbon emissions, electric cars are gradually becoming an option. While it is true that these fossil fuels might not be used directly on electric cars, they still find use indirectly in these cars. When coal is burnt up at the power plant to generate electricity, electric cars tap into fossil fuels indirectly.Learn more here:
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Toma en cuenta los textos para responder estas interrogantes: ¿Consideramos que la aplicación de las medidas de seguridad depende de las características de tu entorno?
Answer:
Si.
Explicación:
Sí, la aplicación de medidas de seguridad depende de las características de su entorno porque el entorno nos brinda para elegir las medidas de seguridad. Existen diferentes instrumentos utilizados para la seguridad de diferentes entornos. Algunas medidas de seguridad se aplican en un entorno mientras que el otro se aplica a otro entorno. Por ejemplo, el vallado es una medida de seguridad que se puede aplicar en el terreno pero no en el agua o cualquier zona fangosa, por lo que podemos decir que las características físicas deciden qué medida de seguridad se debe instalar en el entorno.
Scientists developed a device capable of lowering temperatures in order to slow molecular motion to almost a complete stop. Which of these temperatures is theoretically able to make this happen?
0 K
0°C
273 K
273°C
Answer:
273k
Explanation:
Soooo... This is a complicated problem.
I dunno. Like... Is this a trick question? Trivia, maybe?
Nahhhhh...
It's just not telling us facts...SOME facts, but we need to use past learning to help us.
FIRST of all, what the heck does K even mean?
Is this a memo? A demo? A KO?
Okay, it's nither of these things.
So, let me tell you what the "K" means.
The K means "Kelvin" which is basically a word form for "-"
I AM NOT MAKING A FACE. IT'S THE WORD FORM FOR MINUS. STOP LAUGHING!!!!
And so... To bring objects to a COMPLEETE SKRRRRRRRRRRRRRRRRRRRRRRT...
It will need to be -273.
This means that the answer is 273k.
Which reminds me, Ima play 2k.
And ima rap to-day.
And now I'm being lame.
Just answer the question :/