Đáp án + Giải thích các bước giải:

Bài 2:

$Na_2O\xrightarrow{bazơ\,tương\,ứng}NaOH$

$Li_2O\xrightarrow{bazơ\,tương\,ứng}LiOH$

$FeO\xrightarrow{bazơ\,tương\,ứng}Fe(OH)_2$

$BaO\xrightarrow{bazơ\,tương\,ứng}Ba(OH)_2$

$CuO\xrightarrow{bazơ\,tương\,ứng}Cu(OH)_2$

$Al_2O_3\xrightarrow{bazơ\,tương\,ứng}Al(OH)_3$

Bài 3:

$a\big)$

$HBr:$ axit bromhiđric

$H_2SO_3:$ axit sunfurơ

$H_3PO_4:$ axit photphoric

$H_2SO_4:$ axit sunfuric

$b\big)$

$Mg(OH)_2:$ magie hiđroxit

$Fe(OH)_3:$ sắt (III) hiđroxit

$Cu(OH)_2:$ đồng (II) hiđroxit

$c\big)$

$Ba(NO_3)_2:$ bari nitrat

$Al_2(SO_4)_3:$ nhôm sunfat

$Na_2SO_3:$ natri sunfit

$ZnS:$ kẽm sunfua

$Na_2HPO_4:$ natri hiđrophotphat

$NaH_2PO_4:$ natri đihiđrophotphat

2)

\(Na_2O\) :\(NaOH\)

\(Li_2O\): \(LiOH\)

\(FeO\): \(Fe(OH)_2\)

\(BaO\): \(Ba(OH)_2\)

\(CuO\): \(Cu(OH)_2\)

\(Al_2O_3\): \(Al(OH)_3\):

a)

\(HBr\): axit bromhidric

\(H_2SO_3\): axit sunfuro

\(H_3PO_4\): axit photphoric

\(H_2SO_4\): axit sunfuric

b)

\(Mg(OH)_2\): magie hidroxit

\(Fe(OH)_3\): sắt (III) hidroxit

\(Cu(OH)_2\): đồng (II) hidroxit

c)

\(Ba(NO_3)_2\): bari nitrat

\(Al_2(SO_4)_3\): nhôm sunfat

\(Na_2SO_3\): natri sunfit

\(ZnS\): kẽm sunfua

\(Na_2HPO_4\): natri hidrophotphat

\(NaH_2PO_4\): natri dihidrophotphat