Across
- 2. describes an element that has lost electrons and that has increased in oxidation number
- 5. the amount of energy as heat resulting from the formation of 1 mol of a substance at constant pressure
- 9. a substance that has the potential to reduce another substance
- 10. the that gains electrons in an oxidation-reduction reaction and that is reduced
- 13. a chemical change in which electrons are gained, either by the removal of oxygen, the addition of hydrogen, or the addition of electrons
- 14. the part of a reaction that involves only oxidation or reduction
Down
- 1. a substance that accept a proton
- 3. describes a substance that has gained electrons, lost an oxygen atom, or gained a hydrogen atom
- 4. a device used to measure the heat absorbed or released in a chemical or physical change
- 6. any chemical change in which one species is oxidized (loses electrons) and another species is reduced (gains electrons); also called redox reaction
- 7. the energy transferred between objects that are at different temperatures
- 8. a reaction that removes one or more electrons from a substance such that the substance's valence or oxidation state increases
- 11. the energy in a system that is available for work; a system's capacity to do useful work
- 12. the unit used to express energy, equivalent to the amount of work done by a force of 1 N acting through a distance of 1 m in tie direction of the force (abbreviation, J)