Chapter 14 & 15 Vocabulary.

4. / a substance or molecule that participates in a chemical reaction.
6. / a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
8. / an ionic compound that forms when a metal atom replaces the hydrogen of an acid.
9. / a combination of chemical symbols and numbers to represent a substance.
11. / the law that states that energy cannot be created or destroyed but can be changed from one form to another.
15. / any compound that increases the number of hydronium ions when dissolved in water.
16. / a solid that is produced as a result of a chemical reaction in solution.
19. / any compound that increases the number of hydroxide ions when dissolved in water.

1. / a chemical reaction that requires heat.
2. / a substance that changes the rate of a chemical reaction without being used up or changed very much.
3. / the law that states that mass cannot be created or destroyed in ordinary chemical or physical changes.
5. / a chemical reaction in which heat is released to the surroundings.
7. / a compound that can reversibly change color depending on conditions such as pH
10. / a substance that forms in a chemical reaction.
12. / the minimum amount of energy required to start a chemical reaction.
13. Reaction / the reaction of an acid and a base to form a neutral solution of water and a salt
14. / a solid that is produced as a result of a chemical reaction in a solution.
17. Reaction / the process by which one or more substances change to produce one or more different substances
18. / a value that is used to express the acidity or basicity (alkalinity) of a system.