Answer:
22.5
Explanation:
M=D*V
V=5*5*5=125
M=0.180*125= 22.5
there is not enough information to make a prediction as we dont know what side she taped on magnet C
a) Sulphur + Oxygen → Sulphur dioxide
b) Carbon + Oxygen → Carbon dioxide
c) Sulphur + Iron → Iron sulphide
Protons 78
Neutrons 117
Electrons 78