Water vapor becomes part of the air through the process of evaporation. Describe why and how evaporation occurs. Explain:

evaporation occurs when heat from the sun beams down onto a water source and it turns the water into vapor. If you further explain it, the water vapor will then clump together into clouds. The clouds will then become heavy and release water back to the ground.

Explanation:

answer; talc and gypsum;

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o