Chemcial Reactions

Match it! Select the correct answer from the pull down...Good luck!

Each substance on the left side of the arrow in a chemical equation is a _________

A(n) _______________ chemical equation has the same number of atoms of each element on both sides of the equation

A substance that speeds up a chemical reaction without undergoing a permanant change itself is a ______

If energy in the form of heat is required and used in a chemical reaction, the reaction is ________

What is an insoluble solid that comes out of a double displacement solution?

Substances that prevent certain chemical reactions, or slow them down, are ______

The number that is to the left of symbols and formulas in a chemical equation are called ____________

A chemical reaction in which heat energy is released is a ____________ reaction