Question

1. What is the composition
of Ca(No2)2

Answer 1

What the guy above me said bru ^

Answer 2

1 Calcium, 2 Nitrogen, and 4 oxygen

Step-by-step explanation:

there is no number before of after Ca(calcium), so there is only 1. No(nitrogen) has no number next to it so there would be only 1 of it,but there is a 2 after the parenthesis so there is 2 nitrogen (2*1=2). O(oxygen) has a two next to it so there would be only 2 oxygen, but there is a two after the parenthesis so instead there are 4 oxygen because 2*2=4. Hope this helped you <3