Question

count the atoms! hg(oh)2

Explanation:

Step1: Identify Hg atoms

There is 1 Hg atom.

Step2: Identify O atoms

The sub - script 2 outside the parentheses multiplies the number of O atoms inside. There are 2 O atoms.

Step3: Identify H atoms

The sub - script 2 also multiplies the number of H atoms inside. There are 2 H atoms.

Step4: Calculate total atoms

1 (Hg) + 2 (O) + 2 (H)=5 atoms.

Answer:

5