Question

1. the number of nonmetal atoms in ca(mno4)2 is (1pts) 2 3 4 8

Explanation:

Step1: Identify nonmetal in formula

Nonmetal here is oxygen (O); Ca is metal, Mn is metal.

Step2: Calculate total O atoms

Formula has subscript 4 for O, multiplied by outer subscript 2: $4 \times 2 = 8$

Answer:

$\square$ 8