Vocab 7.1

6. the mass of one mole of a substance
10. an amount of a substance that contains approximately 6.02 x 10^23 particles of the substance
12. a chemical reaction in which the coversion of reactants into products and the conversion of products into reactants happens
15. a substance that undergoes change in a chemical reaction
16. In order to show that mass is conserved during a reaction a chemical equation must be balanced
18. a chemical reaction that absorbs energy from its surroundings

1. a chemical reaction in which electrons are transferred from one reaction to another
2. a chemical reaction that releases energy to its surroundings
3. a chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light
4. a representation of a chemical reaction in which the reactants and products are expressed as formulas
5. the rate at which reactants change into products overtime
7. a chemical reaction in which two or more substances react to form a single substance
8. a state in which the forward and reverse paths of a physical or chemical change take place at the same rate
9. a chemical reaction in which two compounds exchange positive ions and form two new compounds
11. a chemical reaction in which one element takes the place of another element in a compound
13. the energy stored in chemical bonds
14. a chemical reaction in which a compound breaks down into two or more simpler substances
16. a substance that affects the rate of a chemical reaction with out being used up in the reaction
17. new substances formed as a result of a chemical reaction