Question

calculeaza masa moleculara reletiv a si citeste p/t fiecare din ele .
va rog ajutatima
b)CO2,NO2,N2O5,NO
c)SO2,SO3,SiO2,P2O5.Va rog))))))

Answer 1

M(CO2)= 12+32=44 (bioxid de carbon)
M(NO2)=14+32=46(oxid de azot (IV)
M(N2O5)=28+80=108(oxid de azot V)
M (NO)=14+16=30 (oxid de azot II)
M (SO2)=32+32=64(oxid de sulf IV)
M(SO3)=32+48=80(oxid de sulf VI)
M(SiO2)=28+32=60(OXID DE SILICIU)
M(P2O5)=62+80=142(oxid de fosfor V)