M(NO)=14+16=30 г/моль
M(KO)=39+16=55г/моль
M(AlO)=27+16=43г/моль
M(CaO)=40+16=56г/моль
1)Ca(OH)2 + H2SO4 = CaSO4 + 2H2O
2)Ca(OH)2 + CO2 = CaCO3(осадок) + H2O
3)Ca(OH)2 + Na2SO3=CaSO3 + 2NaOH
CH4 -> CH3Br -> C2H6 -> C2H4 -> C2H2 -> C6H6
<span>CH4+Br2[свет] -> CH3Br+HBr </span>
<span>2CH3Br +2Na-> C2H6 +2NaBr </span>
<span>C2H6 [Al2O3]-> C2H4+H2 </span>
<span>C2H4 [Al2O3]-> C2H2 +H2 </span>
2C2H2[C,t ] -> C6H6<span>
</span>
SO2- 4+
H2S - 2-
H2SO4 6+
FeS 2-
H2SO3 4+