Question

question 1
this formula, h₂o contains
one metal and one nonmetal
two metals
two nonmetals
question 2
which formula is an ionic compound?
a. naf
b. co₂
c. n₂
d. no₃

Explanation:

Question 1

• Hydrogen (\(H\)) is a non - metal.
• Oxygen (\(O\)) is a non - metal.
• So, \(H_2O\) contains two non - metals.

• An ionic compound is formed between a metal and a non - metal.
• In \(NaF\), \(Na\) (sodium) is a metal and \(F\) (fluorine) is a non - metal.
• \(CO_2\) is a covalent compound (formed between non - metals \(C\) and \(O\)).
• \(N_2\) is a diatomic molecule of a non - metal (nitrogen).
• \(NO_3\) is a polyatomic ion (not a neutral compound).

Answer:

two nonmetals

Question 2