Across
- 3. agent a reactant that reduces another reactant and loses electrons itself (it's oxidized) in the process
- 4. renewable energy resource that will run out once the supply is used up there will be no more
- 5. warming a gradual increase in the average global tempature due to the build up of green house gases in the atmosphere
- 6. a change with the gain of electrons
- 8. the study of energy involved in chemical reactions
- 11. a reaction in which heat is released
- 12. numbers an actual number or a hypothetical charge that is used to describe an element in a redox reaction with covalent reactants or products
Down
- 1. stored energy
- 2. system a system that is completely open to its surroundings
- 3. energy resource that exists in the infinite supply
- 7. system a system in which energy but not matter may be exchanged between the system and its surrounding
- 9. a reaction in which hear is absorbed
- 10. reaction a reaction in which one reactant loses electrons and another reactant gains electrons