Chemical Reactions and Equations

Front

What happens in a chemical reaction?

Back

Bonds between atoms break and/or are formed.

Front

How are chemical bonds formed?

Back

Electrons move from one atom to another.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is the law of conservation of mass?

Back

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

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Front

What is a product?

Back

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

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides.

Front

What does it mean to balance a chemical equation?

Back

To adjust the coefficients so that the number of atoms of each element is equal on both sides.

Front

What is a molecular formula?

Back

A formula that shows the number of each type of atom in a molecule.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.