<span>3 elements
Nitrogen
Hydrogen
Oxygen
2 nitrogen 4 hydrogen and 3 oxygens
there are only 3 different elements</span>
You are right, it's CA Calcium, 40.08, Group 2 and Row 4.
Obviously since plant cell contains chloroplasts.
A physical property is a quality or condition of a substance that can be observed or measured without changing the substance's composition. a chemical property is the ability of a substance to undergo a specific chemical change.
The answer is 2
Hope this helped ??
