Chapter 13

2. a substance that donates hydrogen ions
5. a measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases
8. any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
9. matter is neither created nor destroyed during a chemical reaction; atoms are merely rearranged, without any apparent loss or gain of mass, to form new molecules
11. the reacting substances in a chemical reaction
12. a chemical reaction in which there is a net release of energy
13. a polyatomic ion made by adding a proton(hydrogen ion)to a water molecule
14. an ionic compound commonly formed from the reaction between an acid and a base

1. the amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together
2. the minimum energy required in order for a chemical reaction to proceed
3. a substance that accepts hydrogen ions
4. the new materials formed in a chemical reaction
6. a representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right
7. a polyatomic ion made by removing a proton(hydrogen ion) to a water molecule
10. a chemical reaction in which there is a net absorption of energy