chemical equations basics

Front

What is a chemical equation?

Back

A short way to show a chemical reaction using symbols.

Front

CaCO₃ represents a chemical __________.

Back

Formula.

Front

The substances listed on the left side of a chemical equation are the __________.

Back

Reactants.

Front

How many Oxygen (O) atoms are in 2C₂HO₈Cl₂?

Back

16.

Front

What is the correct chemical representation of water?

Back

H₂O.

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change.

Front

What are products in a chemical equation?

Back

Substances formed as a result of a chemical reaction.

Front

What does the coefficient in a chemical equation indicate?

Back

The number of molecules or moles of a substance.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a subscript in a chemical formula?

Back

A number that indicates the number of atoms of an element in a molecule.