Types of Chemical Reactions and Balancing Equations

Front

What must be true about the number of atoms in a chemical reaction?

Back

The number of atoms you begin with must be the same as the number of atoms you end with.

Front

What do the red numbers in a chemical equation represent?

Back

Coefficients.

Front

What is a substance that is formed as the result of a chemical reaction called?

Back

Product.

Front

What can you only add, change, or remove when balancing chemical equations?

Back

Coefficients.

Front

What is an example of a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products, e.g., 2H2O -> 2H2 + O2.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What are subscripts in a chemical formula?

Back

Numbers that indicate the number of atoms of an element in a molecule.

Front

What is a synthesis reaction?

Back

A reaction where two or more substances combine to form a single product, e.g., A + B -> AB.

Front

What is a single replacement reaction?

Back

A reaction where one element replaces another in a compound, e.g., A + BC -> AC + B.