Across
- 4. used to heal skin
- 6. fatty acids that have been exposed to hydrogen
- 8. positively charged
- 9. dense core at the center of the atom
- 10. thickness
- 11. gains an electron
- 14. tendency to clog
- 17. substance loses an electron
- 18. groups of monomers that bond together
- 19. negatively charged
- 21. definite weight and volume but no shape
Down
- 1. definite weight but in definite volume and shape
- 2. no charge
- 3. study of chemical reactions such as growth, reproduction,and respiration that occur within a living organism
- 5. chemistry deals with all matter that is now living or was alive
- 7. solid passing into gaseous state without melting
- 12. basic building block molecules
- 13. chemistry deals with matter that was never living
- 15. scientific study of matter
- 16. bond forces that hold atoms together in compounds
- 20. definite weight, volume, and shape