Chemistry Craze

1. mixture where the individual particles cannot be distinguished at all
3. a solution where the solvent is water
5. requires input of energy (heat)
6. transition from solid to gas
8. elements that do not exist naturally as a single atom, however, is bonded together by two elements
10. number of digits that are known to some degree of reliability ( ____ for life)
12. where a solution is boiled in order to separate liquids
14. whenever two liquids do not mix with each other
16. the study of how heat is affects matter and how it is converted to and from other forms of energy
17. a biological catalyst that speeds up the rate of reactions that occur in the body
18. a principle under the conditions of equal pressure and temperature, as well as, equal volumes of all gases that contain the same number of particles
19. the energy that is required to remove an electron from an atom

2. releases heat
4. a negative ion
5. a point where H3O+ ions from the acid equals the moles of OH- from the base and is determined from a graph of the titration
7. diffusion that is through a tiny opening
9. a mixture that contains particles, which will settle out if it is left undisturbed
11. when a base accpets a hydrogen atom from an acid; species produced
13. a rule that means atoms will gain, lose, or share valence electrons to attain all 8 valence electrons
15. the mixture is poured through a filter to separate liquids and solids