What method did Edwin Hubble use to determine that all galaxies were moving in a certain way?

13. Oxides are formed during _______________________.

19. The chemical process in which a substance is broken down by the addition of water.

5. 212 degrees is the boiling point on which temperature scale?

12. The atomic mass of an element is the number of __________ found in it.

14. Anything that occupies space and possesses mass is called:

16. Color, odor, taste are example of what type of properties:

40. Compounds are pure substances that cannot be broken down by chemical changes.

40. Substance that kill bacteria, alters enzymes, causes tissue to be unfit for microbes and slows decomposition. Name me.

37. ________ is a derivative of an amide group. The kidneys remove this substance via urine. It is also a waste product of protein metabolism.