Across
- 4. A substance that contributes hydrogen ions to a solution
- 6. A particle that contains more than one atom
- 8. The rate at which work is done
- 11. An addition to a system
- 12. A molecule containing more than one element
- 14. The time it takes for one-half of an original radioactive parent atom to decay
- 15. The amount of energy used when a 1-watt electrical device is turned on for 1 second
- 17. A smaller organic biological molecule that does not mix with water
- 19. The ability to do work or transfer heat
- 20. Anything that occupies space and has mass
- 21. Randomness in a system
- 22. A loss from a system
Down
- 1. A substance that contributes hydroxide ions to a solution
- 2. A critical component of living organisms made up of a long chain of nitrogen-containing organic molecules know as amino acids
- 3. A measurement of the amount of matter an object contains
- 5. Atoms of the same element with different numbers of neutrons
- 7. The measure of average kinetic energy of a substance
- 9. The smallest particle that can contain the chemical properties of an element
- 10. A highly organized living entity that consists of the four types of macromolecules and other substances in a watery solution, surrounded by a membrane
- 13. A compound composed of carbon, hydrogen, and oxygen atoms
- 16. A substance composed of atoms that cannot be broken down into smaller, simpler components
- 18. A massless packet of energy that carries electromagnetic radiation at the speed of light