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Andrew [12]
2 years ago
9

How does a catalyst increase the rate of a reaction?

Chemistry
1 answer:
Norma-Jean [14]2 years ago
6 0

Answer:

C) It provides a lower activation energy for the reaction is the correct answer.

Explanation:

  • A catalyst increases the rate of the chemical reaction by lowering the activation energy for a reaction.
  • Catalyst is used to increase the reaction rate, it remains unchanged in the chemical reaction and it does not change the equilibrium constant.
  • Activation energy is a minimum amount of energy required to initiate the reaction.

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3 years ago
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BartSMP [9]

Answer:

Explanation:

The first one is CrO.  The Chromium has the same charge as the oxygen so mol numbers are dropped.

The Second one is CrO2 The two oxygens have a charge of 2(-2) = -4. To balance this, the Chromium must have a charge of +4 Cr(Iv)O2

The third one is can be set up like this

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The last one is a bit tricky. Follow this carefully. There are 2 Crs and 3Os.

The formula looks like this

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2 years ago
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Which statement best compares and contrasts two physical properties of matter? Density and solubility are similar because they b
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I believe the correct answer would be that b<span>oiling points and melting points are similar because they both involve the change in a state of a material, but they are different because boiling point involves a change from a liquid to a gas and melting point involves a change from a solid to a liquid. Boiling and melting are phase changes that can happen to a substance however they differ in the process that happens.</span>
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3 years ago
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What is the main product of the fusion reactions in our sun?
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The sun generates its energy by nuclear fusion of hydrogen nuclei into helium.
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