Chemical Reactions Flashcard

Front

What is a reactant in a chemical reaction?

Back

A chemical substance that is present at the start of a chemical reaction.

Front

What is a balanced chemical equation?

Back

A chemical equation with the same number of atoms of each element on both sides.

Front

What is a coefficient in a chemical equation?

Back

A number in front of a chemical formula indicating how many molecules or atoms are involved.

Front

What is a product in a chemical reaction?

Back

A substance formed as a result of a chemical reaction.

Front

What is an ion?

Back

An atom or group of atoms that has a positive or negative charge.

Front

What is a chemical reaction?

Back

A process in which one or more substances are changed into other substances.

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is an endothermic reaction?

Back

A chemical reaction that absorbs energy in the form of heat.

Front

What is an exothermic reaction?

Back

A chemical reaction in which heat is released to the surroundings.

Front

What is a chemical formula?

Back

A way to represent a chemical substance using symbols for its elements.