Question

Which of these substances are molecules?

1.H2O
2.NaCI
3.N2
4.O2
Answer choices
A) 1&2
B) All of them
C) None of them
D) 3&4

Answer 1

c) none of them

Step-by-step explanation:

because H20, N2 , O2 are all molecules except NaCl so there is no answers like ( 1, 3, and4 ) so we choose none of them.