2CH3COOH+Mg=Mg(CH3COO)2+H2
2CH3COOH+MgO=Mg(CH3COO)2+H2O
2CH3COOH+MgCl2=Mg(CH3COO)2+2HCl
CH3COOH+NaOH=CH3COONa+H2O
2HCOOH+Mg=(HCOO)2Mg+H2O
2HCOOH+MgO=Mg(HCOO)2+H2O
2HCOOH+MgCl2=Mg(HCOO)2+2HCl
HCOOH+NaOH=HCOONa+H2O
Решение в фото.....................
<span>2)Na2O, Ca(OH)2
Оксид кремния с водой не реагирует.</span>
Ответ 63663737373737377373ш3ш3ш
3.9 XL
2K+2H2O-->2KOH+H2 , m(K)=39 g/mol, Vm=22.4 L/mol
2*39 22.4
3.9/78 = X/22.4
x=1.12 L
ответ 1.12 л