Chemical Reaction Rates and Measurements

Chemical Reaction Rates and Measurements

11th Grade

18 Qs

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Chemical Reaction Rates and Measurements

Chemical Reaction Rates and Measurements

Assessment

Quiz

Chemistry

11th Grade

Practice Problem

Hard

Created by

Khyl Domrow

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is reaction rate in chemistry?

The speed at which reactants transform into products.

The total amount of products formed in a reaction.

The energy released or absorbed during a reaction.

The temperature change observed during a reaction.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the reaction rate specifically measure?

How quickly reactants change into products.

The final concentration of reactants.

The initial concentration of products.

The equilibrium constant of a reaction.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In general, how can the rate of a chemical reaction be measured?

By observing color changes only.

By measuring the temperature of the reaction.

By calculating the activation energy.

By measuring how quickly reactants decrease or products increase.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the amount of reactants as a chemical reaction proceeds?

They increase in concentration.

They decrease in concentration.

They remain constant throughout the reaction.

They transform into catalysts.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the amount of products as a chemical reaction proceeds?

They increase in concentration.

They decrease in concentration.

They remain constant throughout the reaction.

They revert back to reactants.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products when calcium carbonate reacts with hydrochloric acid?

Calcium oxide, water, and hydrogen gas.

Calcium hydroxide, carbon dioxide, and chlorine gas.

Calcium chloride, water, and carbon dioxide.

Calcium carbonate, hydrochloric acid, and oxygen gas.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does the mass of reactants decrease during the reaction between calcium carbonate and hydrochloric acid?

Carbon dioxide gas is produced and escapes.

Water is consumed in the reaction.

Calcium chloride precipitates out of solution.

Hydrochloric acid evaporates.

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