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Chemical Reactions and Equations

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Questions and Answers

When does a chemical reaction take place only when the reactants are in contact with each other?

Close physical contact

What conditions are necessary for a chemical reaction to take place?

Close physical contact, solution form, heat, light, catalyst, electricity, pressure

In what form do some substances react with each other?

Solution form

What can increase or decrease the speed of some chemical reactions?

Catalyst Signup and view all the answers

What is a chemical equation?

A symbolic representation of a chemical reaction Signup and view all the answers

What does a chemical equation represent?

The conservation of mass Signup and view all the answers

What information does a chemical equation provide?

The stoichiometry of the reaction Signup and view all the answers

What is the purpose of a chemical equation?

To provide a symbolic representation of a chemical reaction. Signup and view all the answers

How is a chemical reaction represented in a chemical equation?

In the form of symbols and formulas. Signup and view all the answers

What does an equation provide for a chemical reaction?

An equation provides a symbolic representation of the reaction. Signup and view all the answers