Chemical Reactions Practice Flashcard

Front

What is a product in a chemical reaction?

Back

The substance that is formed as a result of a chemical reaction.

Front

What type of reaction is represented by the equation Pb(NO3)2 + 2KI → PbI2 + 2KNO3?

Back

Double-replacement reaction.

Front

How is a chemical equation balanced?

Back

By changing or adding coefficients.

Front

What is the balanced equation for the combustion of sulfur?

Back

S + O2 → SO2.

Front

When is a chemical equation considered balanced?

Back

When the same number of each kind of atom appears in the reactants and in the products.

Front

What is a reactant in a chemical reaction?

Back

The starting substance that undergoes change during a chemical reaction.

Front

Define a synthesis reaction.

Back

A type of chemical reaction where two or more reactants combine to form a single product.

Front

What is a decomposition reaction?

Back

A type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a single-replacement reaction?

Back

A type of chemical reaction where one element replaces another in a compound.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate the number of molecules or moles of that substance.