Question

1. choose the best answer.

the overall charge on a covalent molecule is _.
neutral or zero
positive
positive or negative
negative

1. choose the best answer.

compared with ionic compounds, covalent compounds _.
are poor conductors of electricity
are malleable
are rigid solids
have higher melting points

Explanation:

• For question 3: Covalent molecules are formed by sharing electrons. There is no net loss or gain of electrons overall, so the charge is neutral or zero.
• For question 4: Ionic compounds have free - moving ions (in molten or aqueous state) that can conduct electricity. Covalent compounds (except for some polar covalent compounds in aqueous solutions) do not have free - moving charged particles (in most cases) to conduct electricity, so they are poor conductors.

Answer:

1. neutral or zero
2. are poor conductors of electricity