The solubility table predict the products of what kind of reactions?

Double replacement reactions

Explanation: In general, a double replacement reaction is written as:

This type of reactions takes place if an insoluble product(precipitate) is formed which could be predicted using solubility table or rules.

For example, chloride of silver ion is insoluble. So, if we mix barium chloride and silver nitrate solutions then the double replacement reaction takes place and a precipitate of silver chloride(AgCl) is formed.

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