Bài 1:
1)2Na + 2 H2O → 2NaOH +H2 . NaOH:Natri hiđroxit
2)CaO + H2O → Ca(OH)2 . Ca(OH)2:Canxi hiđroxit
3)P2O5 +3 H2O→ 2 H3PO4:Axit Photphoric
4)Zn + H2SO4 → ZnSO4 +H2 .ZnSO4:Kẽm sunfat
5)Fe + 2HCl → FeCl2 +H2 .FeCl2:sắt(II) clorua
6)2Al + 3 H2SO4 → Al2(SO4)3 +3 H2 .Al2(SO4)3:nhôm sunfat
Bài 2:
a)2Al + 6HCl→2AlCl3 +3H2
$n_{Al}$=$\frac{10,8}{27}$ =0,4(mol)
theo pt:2molAl→3molH2
theo đề:0,4molAl→0,6molH2
$V_{H2}$=0,6*22,4=13,44(l)
b)theo pt:2mol Al→6molHCl
theo đề:0,4molAl→1,2molHCl
=>$C_{M_{HCl}}$=$\frac{1,2}{0,5}$ =2,4(M)
