Chapter 4-page 86
31) Denver, Colorado
32) each day: 0.05 g
each year: 18.25 g
33) There woul be a lot of water to dilute the acids. Stopping the water supply would lead to thirst. Also, the water could also be boiled to get rid of any extra bacteria that may contaminate the water supply.
34) There is no rainfall to wash away the soluble minerals.
35) a: 1) 0.4 g 2) 0.8 g
36) a: sodium nitrate
b: I)no change
III) no change
IV) no change
37) 12, 20
38) Minerals left behind by the evaporating water.
39) a: permanent- not soluble in water
water color- soluble in water
b: permanent-oil based
water color- water base
40) a: it's very soluble in hot water; it's higher
41) a: more gas will dissolve in the 50 cm^3 than in the 10 cm^3
42) a: adding energy
b: increases amount of solid touching water
c: adding energy
43) the gas dissolves into the water on the way up/ we used two Alka-Seltzer tablets instead on one=more gas