Question 2 (0.04 points) Which description about covalent compounds is correct?
A) Covalent (or molecular) compounds generally have higher melting points.
B) Covalent (or molecular) compounds conduct electricity in their molten state.
C) Basic structure unit of covalent (or molecular) compounds is NOT molecules.
D) Covalent (or molecular) compounds generally have lower melting points and
tend to be gases, liquids, or low-melting solids.

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

the correct answer to this question is 2

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