Question

1. the number of nonmetallic atoms in (nh4)2so4 is (1pts)

□ 5
□ 8
□ 10
□ 15

Explanation:

Step1: Identify nonmetallic elements

Nonmetals in $\boldsymbol{(NH_4)_2SO_4}$: N, H, S, O

Step2: Count each nonmetal atom

• N: $2 \times 1 = 2$
• H: $2 \times 4 = 8$
• S: $1 \times 1 = 1$
• O: $1 \times 4 = 4$

Step3: Sum all nonmetal atoms

$2 + 8 + 1 + 4 = 15$

Answer:

$\boldsymbol{\square}$ 15