A CHEMICAL PROPERTY is a characteristic of matter that describes its ability to change into a different substance. When elements undergo chemical reaction, they experience a breakage in the chemical bonds that hold their particles together, new chemical bonds are then formed; this makes them to become a new substance.
The answer is C because you must do all the other things first to get to the that’s part hope that helps
N=14
H= 1(5)= 5
C=12(2)=24
O=16(2)=32
= 75
Protons and neutrons are found inside the nucleus