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3 years ago

Which of the reactions below are catalyzed? Check all that apply.

Chemistry

2 answers:

Verdich [7]3 years ago

7 0

Answer:

B. Salt, NaCl, is produced by the process of evaporation of seawater or brine. If the surface area of the water is increased, the same volume of water evaporates faster.

C. The Haber process combines hydrogen and nitrogen to make ammonia. The two gases are passed through a reactor under pressure and at high temperatures. If iron is added to the reactor, the yield of ammonia increases.

Explanation:

Evaporation of water is responsible for the production of sodium chloride also known as table salt. Sodium and chlorine are present in water. When more evaporation of water occurs, sodium and chlorine come close together forming sodium chloride. Haber process is responsible for the production of ammonia which is used as fertilizer. For speed up the process, catalyst is used such as iron in order to complete the reaction in less time. Iron binds hydrogen and nitrogen with each other.

Alexus [3.1K]3 years ago

3 0

Answer:a c d edj

Explanation:

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What are the molar concentrations of the ion in 0.26m aluminum sulfate? For c(so4^2-)

Alex777 [14]

Answer:

0.78 M for SO₄²⁻

Explanation:

The chemical formula for aluminium sulfate is Al₂(SO₄)₃

So for a concentration of 0.26 M you have in solution 0.26 moles of Al₂(SO₄)₃ in 1 liter of solution.

But you have three times more sulfate ions SO₄²⁻ in solution, so the molar concentration for this ion will be:

0.26 × 3 = 0.78 M

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4 years ago

what order does covalent bond, dipole-dipole, hydrogen bond, ionic bond, metalic bond, and london dispersion bond for strength?

jarptica [38.1K]

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Explanation:

Hope this will help you

7 0

3 years ago

Which statement accurately describes

nalin [4]

Answer:

The correct answer is "Temperature is a measure of the average kinetic energy of the molecules in a substance".

Explanation:

The kinetic energy of a substance is defined as the power that results from the movement of its particles. In this sense, temperature could be defined as a measure of the average kinetic energy of the molecules in a substance. Actually, temperature expressed in Kelvin degrees is directly proportional to the average of the kinetic energy. On the other hand, heat is defined as the total energy in a substance.

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3 years ago

I WIll upvote for answer<br> Balance the following reaction Fe^2 O ^3 +HCI->FeCI^3+H^2O

kotykmax [81]

Fe^2 O^3 + 6HCl --> 2FeCl^3 + 3H^2 O

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3 years ago

How many atoms are in 3.89 moles of Cu?

AleksandrR [38]

Answer:

2.34×10^24

Explanation:

N=n×Na

N=3.89×(6.02×10^23)

N=2.34×+0^24 atoms of Cu

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4 years ago