Answer:
Explanation:
A) O2 (non polar covalent)
B) HF (polar covalent)
C) NaCl (because its ionic)
im not 100% sure hope it helps
8. b
9. c
10.a
all of those can be determined by units
Answer:erf,gjn 2203856c, vbb
Explanation:
It might change because of the amout of rain that fell in the year and the melting of ice which allows the water amount to increase
