Chemistry Vocabulary

4. a chemical equation that does not indicate the relative amounts of reactants and products
8. a chemical change in which an element or a compound reacts with oxygen, often producing energy in form of heart and light
9. a substance produced in a chemical reaction
10. a reaction in which the conversion of reactants into products and the conversion of products into reactants occur simultaneously
13. a chemical change in which one element replaces a second element in a compound
14. a type of solution where water acts as a solvent
15. the symbolic representations of chemical reaction in the form of symbols and formula
16. a chemical change in which a single compound is broken down into two or more simpler products
17. a substance that speeds up a chemical reaction but is not consumed by the reaction; remains unchanged

1. a chemical change that involves an exchange of positive ions between two compounds
2. an ion that is not directly involved in a chemical reaction; an ion that does not change oxidation number or composition during a reaction
3. when the number of atoms involved in the reactant side is equal to the number of atoms on the product side
5. a small whole number that appears in front of a formula in a balanced chemical equation
6. a chemical change in which two or more substances react to form a single new substance
7. the amount of product obtained in a chemical reaction
11. an equation for a reaction in solution showing only those articles that are directly involved in the chemical change
12. a substance present at the start of a reaction