What is the balanced chemical equation for the decomposition of 5.0 moles of calcium nitrate (Ca(NO3)2) to form calcium oxide (CaO), nitrogen dioxide (NO2), and oxygen gas (O2)?

a. 3Ca(NO3)2(s)⇌3CaO(s)+6NO2(g)+O2(g)
b. 2Ca(NO3)2(s)⇌2CaO(s)+4NO2(g)+O2(g)
c. 4Ca(NO3)2(s)⇌4CaO(s)+8NO2(g)+O2(g)
d. 5Ca(NO3)2(s)⇌5CaO(s)+10NO2(g)+2O2(g)