Across
- 1. 1 kcal
- 5. 1 calorie
- 6. affecting form but not chemical composition of a chemical substance, used to separate mixtures into their component compounds
- 9. depends on the amount of matter; volume, mass, length, weight
- 10. Units for heat
- 13. change in temperature
- 14. bubbles, color change, temperature change, gas, odor change
- 17. The study of the transfers of energy as heat that accompany chemical and physical changes
- 19. Abbreviation for specific heat
- 20. density
Down
- 2. a nutritional energy unit
- 3. characteristic of a substance that can be determined without changing the identities
- 4. the amount of heat lost or gained
- 7. when the substance has changed as a result of a chemical reaction
- 8. not significant digits
- 11. 1000 calories
- 12. significant after a decimal
- 15. unit for specific heat
- 16. chemicalreaction involving the rearrangement of atoms of one or more substance and a change in their chemical properties resulting in at least one new substance
- 18. does not depend on matter present; density, melting point, color, reactivity