СH4 + 2O2 = CO2 +2H2O
n(CH4) = m/M=(48 г) / (16 г/моль) = 3 моль
n(CO2) = n(CH4) = 3 моль
m(CO2) = M*n = 44 г/моль * 3 моль = 132 г
1)m(CaCO3)=0,75*100=75
2)30<span>Zn 1s22s22p63s23p63d104s2
3)49In </span><span>1s </span>2<span>2s </span>2<span>2p </span>6<span>3s </span>23p6<span>4s </span>23d104p65s24d105p<span>1
</span>
4 39Y <span>1s </span>2<span>2s </span>2<span>2p </span>6<span>3s </span>23p6<span>4s </span>23d104p65s24d<span>1</span>
Fe(OH)3+3HNO3=3H2O+Fe(NO3)3
Na2O, Ag3S, Ca3P2, NO2, F2O, K3N, Cl2O7, Al4C3