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olga nikolaevna [1]
2 years ago
10

Please help ASAP !!!!!!!!!

Chemistry
1 answer:
user100 [1]2 years ago
7 0

Answer:

A. the speed at which reactants change to products over a given time

Explanation:

The rate of reaction is a measure of the speed of a chemical reaction. In chemical kinetics, the speed at which the reaction occurs is the reaction rate.

  • The measurement of the reaction rate is based on the disappearance of a reactant or appearance of the product with increasing reaction time.
  • Rate of reaction depends on the:
  1. nature of reactants.
  2. concentration of the reactants or pressure
  3. temperature
  4. presence of catalyst
  5. sunlight
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How many molecules are in 42.3g sample of water
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The number of molecules is 1.4140*10^24 molecules

Explanation:

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You're at the zoo and have a big red 1.80 L helium balloon. The barometric pressure today is 785 mmHg. Then you hear the roar of
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