Match Term Definition Pure substance A) Mixture that has its different components mixed unevenly within the substance
Heterogeneous B) Consists of a single element or type of compound
Homogeneous C) Mixture that has its different components mixed evenly within the substance
Solution D) Liquid homogeneous mixture in which the solute is distributed evenly within the solvent

it is stable as it is in group 0 which have full outer shells of electrons

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