If the solubility of NaCl at 25.0 °C is about 36.0 grams per 100.0 grams of water, about how many grams of NaCl is soluble in 450.0 grams of H20 at the same temperature?

the answer is minerals.

ugh fiel iente of insistí is did kiwis jaj

the answer is c.the valence of the atoms combine .

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