Multiple choice

calcium carbonate

  1. Ca3CO

  2. CaCO3

  3. Ca2CO3

  4. Ca3Co3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Calcium (Ca) has a 2+ charge and carbonate (CO3) has a 2- charge. They combine in a 1:1 ratio to form CaCO3.

Keep practicing — related questions