In which of these statements are protons, electrons, and neutrons correctly compared?
Quarks are present in protons and neutrons but not in electrons.
Quarks are present in protons, neutrons, and electrons.
Quarks are present in neutrons and electrons but not in protons.
Quarks are present in protons and electrons but not in neutrons.

The theoretical yield of H₂O in this reaction is 31.69 Kg.

The chemical equation of the reaction of NH₃ and O₂ is,

NH₃ + O₂ → NO + H₂O

Now, balancing this equation,

4NH₃ + 5O₂ → 4NO + 6H₂O

So, as per reaction, we can see,

NH₃ is limiting reagent, hence it will decide the extent of products,

4 moles of NH₃ reacts completely with two oxygen to form 6 moles of water.

Moles = Mass reacted/formed/molar mass.

Molar mass of NH₃ = 17.04 g/mol

Reacted mass of NH₃ = 45000 g.

Molar mass of H₂O is 18 g/mol

Now, can write,

4 x (mass of NH₃ reacted/molar mass of NH₃) = 6 x (mass of H₂O formed/molar mass of H₂O)

4 x (45000/17.04) = 6 x (Formed mass of H₂O/18)

Formed mass of H₂O = 31690.14 grams.

Formed mass of H₂O = 31.69 Kg.

So, the theoretical yield of H₂O is 31.69 Kg.

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The entropy of the system increases according to  increase entropy principle

The Increase in Entropy Principle states that for any process the total change in entropy of a system together with its enclosing adiabatic surroundings is always greater than or equal to zero.

The measure of a system's thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system.

So hence when ice cubes are added into a insulated cup of hot water it decreases the temperature and the ice melts

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Potassium sulfate and Calcium chloride reacts with each other to form Potassium chloride and Calcium sulphate. The chemical yield in this process is about 99%.

The balanced chemical reaction for the reaction of Potassium sulfate and Calcium chloride is given as:

CaCl₂ + K₂SO₄ → CaSO₄ + 2KCl

The reaction between Potassium sulfate and Calcium chloride is a double displacement type of reaction.

Double displacement reaction is a type of reaction where one part of the reactant is replaced by the another part of the reactant.

The general form of double displacement reaction is written as:

AB + CD → AD + BC

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Answer: 2

Explanation: For the equation to be balanced, the elements or compounds from the reactant and product sides must be equal.

Everything else was equal except the Na and Cl which on the reactant side it had 2 molecules each and on the product side 1 molecule.  

All you have to do is add 2 Infront of NaCl on the product side to make the reaction balance.

Ozone has dipole moment even though all the atoms  are the same because of the presence of lone pair on the central oxygen atom.

The dipole moment of any molecules is the product of the charge on the either side of the molecule and the distance between them.

As we know, Ozone contains 3 oxygen atoms.

The presence of lone pair on the central oxygen atom bends down the molecule of ozone which indeed give result to the a bent symmetry of ozone molecule. As we know, if a molecule is bent then it is very lightly to have some dipole moment.

Even though there are all the items of same kind but the charge on all the three atoms is different which gives contribution in the formation of the dipole moment. So, we can conclude here that the small dipole moment in ozone molecule is observed because of the presence of the lone pair and symmetry of the molecule.

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The number electrons in the outermost orbit in the Bohr model of a Boron atom is 3. The outermost orbit of the electrons of a Boron atom is in the L-shell.

The Bohr model is a structural model of an atom where the electrons revolve around the nucleus of an atom in distinct circular orbits (shells). Each shell has a maximum number of electrons by this formula: 2n², where n is the principal quantum numbers (n = 1, 2, 3, 4, ...).

The composition of numbers of electrons in each shell of an atom is called electronic configuration.

Boron is an atom with the atomic number 5. So, it has 5 electrons. The electronic configuration is

L-shell is the outermost orbit in the Bohr model of a Boron atom.

Hence, the number of electrons in the outermost orbit in the Bohr model of a Boron atom is 3.

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One of the first ten compounds, carbon tetrachloride, is used in a variety of industrial manufacturing processes as well as in consumer products such as paints, adhesives, degreasers, and other things.

An organic molecule called carbon tetrachloride is made up of a core carbon atom that is encircled by four chlorine atoms arranged in a tetrahedron. Because of its extremely low melting point, it is found as a colorless liquid at ambient temperature. It has a wide range of uses, including in cleaning supplies, fire extinguishers, and fumigants. It has been discovered that large amounts of it can have negative health effects.

A substance's solubility refers to its capacity to dissolve in a certain solvent. The fundamental solubility rule tells us whether a given item dissolves in

It is a clear liquid that has a faintly perceptible sweet odor. It is also known as benziform, perchloromethane, methane tetrachloride, carbon chloride, and methane tetrachloride. The most common way to encounter carbon tetrachloride is as a colorless gas in the air. Both its inflammability and ease of dissolution in water are nonexistent.

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The rate constant increase by the factor of 4 when temperature is increased from 25C to 37C and activation energy is 85.6KJ. This can be solved using Arrhenius equation.

What is Arrhenius equation?

Arrhenius equation explains the relation between temperature and rate of the reaction for many chemical and physical reactions. It is given by,

k = A x e^(-Ea/RT)

where k = rate of the reaction, Ea = activation energy, R = gas constant, T = temperature.

The increase in the rate of the reaction can be calculated by Arrhenius reaction when the 2 different temperatures are given.

log k2/k1 = Ea / 2.303R [T2-T1 / T2T1] = 85.6 / 2.303 x 8.314 [ 310 - 298 / 310 x 298] = 4.

Therefore, by using Arrhenius equation, the increase in the rate of the reaction when the temperature increased from 25C to 37C is by a factor of 4.

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The missing component in the nuclear equation is  [tex]{{0} \atop {-1}} \right.[/tex]e.

Nuclear reactions are processes in which one or more nuclides are produced from the collisions between two atomic nuclei or one atomic nucleus and a subatomic particle. The nuclides produced from nuclear reactions are different from the reacting nuclei (commonly referred to as the parent nuclei).

In the given reaction in order to balance the reaction we can see that their mass numbers are same so the difference between them is = 0, and the difference in their atomic number is  91-90 = 1, hence the component is the [tex]\beta[/tex] particle that is formed.

This type of nuclear reaction is know as [tex]\beta[/tex]decay nuclear reactions

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The kind of light absorbed by greenhouse gases that causes the warming of the atmosphere is infrared light.

Global warming refers to the increase in the average global temperature as a result of an increased amount of absorbed infrared light by greenhouse gases.

Greenhouse gases are gases that form a blanket layer in the atmosphere and prevent reflected low-energy infrared light from the sun from returning back to space. By absorbing this light, greenhouse gases are able to keep the earth warm.

However, as the concentration of greenhouse gases keeps increasing in the atmosphere, so is the amount of infrared light absorbed. Consequently, the atmosphere keeps getting warmer. The more the concentration of the gases increases, the more the temperature.

This is what is currently causing global warming.

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An ammonia buffer solution contains 0.18 m NH₄ and 0.27 m NH₃ the pka of ammonium is 9.24  and the pH of the buffer is  9.41

pH means a measure of how acidic or basic a substances or solution

Here given data is

Pka of NH₄  = 9.24

Concentration of NH₄ = 0.18 M

Concentration of NH₃ = 0.27 M

Then we have to calculate pH =?

The pH of buffer solution can obtain by using the Henderson Hassel Bach equation

pH = Pka + log [base]/[acid]

pH =  9.24 + log [NH₃]/[NH₄]

pH = 9.24 + log [0.27 M[/[ 0.18 M]

pH = 9.24 + log [1.5]

pH =  9.24 + 0.176

pH = 9.41

pH of the buffer is 9.41

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This is closely related to pi bonds in double and triple bonds prevent these bonds from rotating.

This rigidity has an effect on the physical structure of compounds and can influence chemical reactivity. Here double bonds contain pie orbitals, they are not free to rotate.

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The given electronic configuration is of Potassium.

The electron configuration in atomic physics and quantum chemistry refers to the arrangement of electrons in orbitals around an atomic nucleus or the distribution of electrons within an atom or molecule.

One orbital can house a maximum of two electrons, and there are four different types of orbitals (s, p, d, and f). More electrons can be held in the p, d, and f orbitals since they contain various sub levels.

Thus, the given atomic configuration is 1s²,2s²,2p⁶,3s²,3p⁶4s¹.

by counting the number of electrons present in orbitals we can find out the atomic number of the atom because ,

no of electrons present = atomic number

thus, no of electrons = 2+2+6+2+6+1=19

the element with atomic number 19 is potassium.

thus, the given electronic configuration is of potassium.

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solid(particles are appropriately packed)  in solids there is no distance between the constituent particles

liquid(particles are closely packed).

gas(particles move freely) .

In a gas, the particles are evenly spaced out and not in any particular order. There is no regular arrangement of liquid next to one another. solids are regularly arranged and closely packed.

We can infer from the diagram that there is no space between the individual particles that make up solids. Without any intermolecular voids between the individual molecules, it is a completely packed structure.

In contrast, the particles in liquids are more closely packed than those in gaseous fluids, albeit they are more loosely packed than those in solids. We can now observe that there is a significant intermolecular gap between the constituent particles of gases. They are packed more flimsily than

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0.28986 M mass of potassium nitrate can be produced from the reaction of 30.00ml of 0.10m nitric acid with 15.00ml of 0.25m potassium carbonate

V₁S₁ = V₂S₂ ( V₁  is the volume of acid ,S₁ is the strength of acid, V₂ is the volume of base , S₂ is the strength of base)

So, S1= V2S2 /V1

Putting the values ;

S1= V2S2 /V1

=> S1 = (32.58×0.08897)/10.00

=> S1 = 0.28986

concentration of solution of phosphoric acid = 0.28986 M

One or more chemicals, sometimes referred to as reactants, are changed into one or more new substances, referred to as products, during a chemical reaction. Chemical elements and compounds are both substances. reacting in action, procedure, or example. opposition to a movement, power, or effect The transformation of one or more chemicals into one or more other compounds is known as a chemical reaction. Examples include how rust is created when iron and oxygen combine. Making sodium acetate, carbon dioxide, and water from vinegar and baking soda. Exploding or burning items

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The empirical formula of hydroxylamine is Nitrogen 1, Hydrogen 3 and oxygen 1 (N1H3O1).

To find the empirical formula, we must first figure out the amount of oxygen present, which is equal to 100 minus the percentages of nitrogen and hydrogen present. Combining the values gives us the following outcome: The amount of oxygen present is expressed as 100 minus 42.41 and 9.15, which equals 48.44. Nitrogen is 42.41, contains 9.15 percent hydrogen, and has 48.44 percent oxygen. The smallest amount will be shared. When divided by 3.0275 and 3.0229, respectively, the least nitrogen value will equal nearly 1, which is nitrogen. 9.15 divided by 3.0275 = 3, and 3.0275 divided by 3.0275 equals 1 for oxygen and hydrogen. The nitrogen concentration in this instance is 1. 3. 1 points are needed to compare hydrogen to oxygen.

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Answer:

Afferent or sensory neurons

Explanation:

They collect stimuli received by receptors throughout the body, including the skin, eyes, ears, nose, and tongue as well as pain and other receptors in the internal organs. Sensory information is transmitted to the central nervous system, which includes the brain and spinal cord.

The element that is present in group 2 and period 6 of the periodic table is Barium. The number of electrons here is 56, proton is 56 and neutron is 81.

Periodic table is  systematic  arrangement of the all the known elements, where the elements are arranged in the order of their atomic number. This table helps the for quick understanding of individual properties such as as their mass, electron number, electron configuration and their unique chemical properties.

The columns of the periodic table are called the  groups. There are 18 groups in total. Members of the same group in the table have the same number of electrons in the outermost shells of their atoms and form bonds of the same type.

The horizontal rows are called periods. Periods represents to the relationship of orbitals, or likely areas in which electrons will be found, inside the outermost shell of the atom. As we go down the period the more of electron cloud around the nucleus increases. There are total 7 periods in the periodic table.

If we read the periodic table then we will understand that the element which is present in group 2 and period 6 with atomic weight 137.33 is Barium. As the atomic number of Barium is Z=56 so Np=Ne=56. remaining is 81 which is the number of neutrons.

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The ability of sim agar to test for hydrogen sulfide production is based on the addition of which of the following substrates - Peptones, Sodium Thiosulphate, Ferrous Sulfate.

An example of a multi-test medium is SIM (sulfide, indole, motility) media, which examines multiple aspects of the bacterium's metabolism simultaneously. In this instance, motility, indole synthesis, and hydrogen sulfide generation.

Motility, indole, and sulfur. This media is differential. It examines an organism's capacity to reduce sulfur, make indole, and move through the agar (be motile). SIM is frequently used to distinguish between Enterobacteriaceae species.

Pancreatic digest of casein, peptic digest of animal tissue, ferrous ammonium sulfate Fe(NH4)2(SO4), sodium thiosulfate Na2S2O3, agar (3.5 g/L), and distilled water are all ingredients in SIM Medium.

The colorless gas hydrogen sulfide (H2S) has a pungent smell of rotting eggs. The eyes and respiratory system may get irritated after being exposed to hydrogen sulfide.

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Answer:

1. Protons

2. Protons and Neutrons

3. Valence electrons

Explanation:

The ketone will have a larger rf value because it is more polar than the alcohol.

Does more polarity suggest a greater or lesser Rf value?

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The final temperature after mixing these solutions will be 311K.

This can be calculated using formula:

q = m⋅c⋅(change in temperature)

−q (lost) = q (gained)

This is equivalent to

−50.0g⋅ (T−330)K = 30.0g⋅ (T-280)K

−50⋅T+16500 =30⋅T−8400

80.0⋅T = 24900

T = 311.25 K

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Dipoles are not the dominant intermolecular forces between IBr molecules in liquids. IBr is a covalent bond.

A covalent bond is a chemical bond that requires the sharing of electrons to form electron pairs between atoms. The constant balance between attractive and repulsive forces between atoms according to their share of electrons is called a covalent bond.

Covalent bonds are much more common in natural chemistry than ionic bonds. A covalent bond is the simultaneous attraction of the nucleus to one or more electron pairs. Covalent compounds generally have low boiling and melting factors and are determined in all three body states at room temperature. Covalent bonds no longer conduct electricity; This is because covalent compounds no longer have charged particles that can carry electrons.

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Answer:

The chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide

The chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide.

Ocean acidification is the global decrease in seawater pH caused by the oceans' extensive uptake of atmospheric carbon dioxide (CO2) in the atmosphere. Ocean acidification is primarily caused by the Earth's atmosphere being overburdened with massive amounts of CO2, which is created by automobiles, industrial processes, and agricultural activities.

A third to a half of the CO2 produced into the atmosphere by human activity since the start of the Industrial Revolution, or around 1750, is being absorbed by the oceans. Scientists believe that at that time, seawater's average pH decreased between 8.19 to 8.05, representing a 30% increase in acidity. The chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide.

Therefore, the chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide.

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There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, ionic compounds with transition metals and  ionic compounds without transition metals are named in the same way.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

Ionic compounds with transition metals are named with the same method as compounds without transition metals, except the charge of the metal ion is specified by a Roman numeral in parentheses after the name of the metal.

Therefore, ionic compounds with transition metals and ionic compounds without transition metals are named in the same way.

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For the necessary concentration, 500 ml distilled water must be added here.

You can consume distilled water, of course. Because it is flatter and less flavored as tap and bottled waters, you might not enjoy the taste. Businesses boil water, collect the steam, and then condense the liquid back to liquid to create distilled water. Minerals and pollutants are taken out of the water by this method.

Briefing:

Molarity= Volume /Moles​

Moles of HCl present =100×10 −3 ×3=0.3

Required molarity =0.5

∴0.5= Volume /0.3

​∴Volume=0.6 L=600 mL

Here, 600 mL total, 100 mL at the beginning

For the necessary concentration, 500 ml distilled water must be added here.

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Answer:

each element gains one proton as you move from left to right across a period, atomic number is the number of protons

careful not to confuse it with the mass number which is the number of protons and neutrons.

also remember that in any given element, the proton number is always equal to electron number as they have opposite charges that cancel off, this is why elements are neutral.

The theoretical yield in grams for this reaction under the given conditions is 11.05g.

The theoretical yield is the greatest amount of a product that can be produced in a chemical reaction. It can be determined using the chemical equation with balance. the relative formula mass, mass, and mass of the  limiting reactant, as well as the relative formula mass of the result

Given,

Mass of H₂ = 1.96 g

Mass of N₂ = 9.78 g

Molar mass of H₂ = 2 g/mol

Molar mass of N₂ = 28 g/mol

Lets calculate the moles of N₂ and H₂,

Moles of H₂ = [tex]\frac{given mass}{molar mass}[/tex]

H₂ = [tex]\frac{1.96}{2}[/tex]

H₂ = 0.98 mol

same for moles of N₂ = [tex]\frac{given mass}{molar mass}[/tex]

N₂ = [tex]\frac{9.78}{28}[/tex]

N₂ = 0.349 mol

Now, calculate limiting and excess reagent.

The balanced chemical equation is:

3H₂ + N₂ = 2NH₃

From the balanced reaction we conclude that.

As, 3 mole of H₂ react 1 mole of N₂

So, 0.98 moles of H₂ react with 0.98/3 = 0.32 moles of N₂

From this we conclude that, N₂ is an excess reagent because the given moles are greater than the required moles and H₂ is a limiting reagent and it limits the formation of product.

Let us calculate the moles of NH₃

From the reaction, we conclude that

As, 3 mole of H₂ react to give 2 mole of NH₃

So, 0.98 mole of H₂ react to give [tex]\frac{2}{3}[/tex]×0.98 = 0.65 mole of NH₃

Now we have to calculate the mass of NH₃

Mass of NH₃ = Moles of NH₃ × Moles of NH₃

Molar mass of NH₃ = 17 g/m

Mass of NH₃ = 0.65 × 17

Mass of NH₃ = 11.05g

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The compound: d) all of the above are correct ( considered a d sugar, has 3 chiral carbons, is considered an aldose )

As a general rule, chiral carbon centres are carbon atoms positioned at the four corners of a tetrahedron and attached to four distinct substituents. Steeogenic carbons and asymmetrical carbon atoms are other names for chiral carbon atoms. The definition of an aldose is a monosaccharide (simple sugar) with a carbon backbone chain, an aldehyde group on the carbon atom at the end, and hydroxyl groups connected to all of the other carbon atoms. Aldoses differ from ketoses, which are considered ketones because they have the carbonyl group away from the end of the molecule. The Lobry-de Bruyn-van Ekenstein transition can isomerize aldoses into ketoses.

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If a non-diabetic person ingests carbon in the form of sugar than carbon is likely to be released from their body in the form of CO₂.

The pancreas releases glucagon while the awareness of glucose inside the bloodstream falls too low. Glucagon causes the liver to transform stored glycogen (the multibranched polysaccharide of glucose in frame storage) into glucose, which is released into the bloodstream.

The absorption price of fructose alone from the small gut is slower than that of glucose. this is partially due to the differences in the absorption manner between the two monosaccharides. Glucose is absorbed from the intestine into the plasma thru more than one active glucose co-transporter protein.

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