KOH + CO₂ \(\rightarrow\) K₂CO₃ + H₂O

KOH + CO₂ \(\rightarrow\) KHCO₃

2KOH + H₂SO₄ \(\rightarrow\) K₂SO₄ + H₂O

2KOH + Al₂O₃ \(\rightarrow\) 2KAlO₂ + H₂O

2KOH + SO₂ \(\rightarrow\) K₂SO₃ + H₂O

KOH + SO₂ \(\rightarrow\) KHSO₃

3CO + Fe₂O₃ \(\underrightarrow{t^o}\) 2Fe + 3CO₂

CO + CuO \(\underrightarrow{t^o}\) Cu + CO₂

K₂O + H₂O \(\rightarrow\) 2KOH

K₂O + H₂SO₄ \(\rightarrow\) K₂SO₄ + H₂O

K₂O + CO₂ \(\rightarrow\) K₂CO₃

K₂O + SO₂ \(\rightarrow\) K₂SO₃

K₂O + Al₂O₃ \(\rightarrow\) 2KAlO₂

Al₂O₃ + 3H₂SO₄ \(\rightarrow\) Al₂(SO₄)₃ + 3H₂O

Fe₂O₃ + 3H₂SO₄ \(\rightarrow\) Fe₂(SO₄)₃ + 3H₂O

CuO + H₂SO₄ \(\rightarrow\) CuSO₄ + H₂O

1,Fe2O3 + 6HCl-> 2FeCl3 + 3H2O

2,Ca(OH)2 + H2SO4 -> CaSO4 + 2H2O

3,2Al + 6HCl -> 2AlCl3 + 3H2

4,Ba(NO3)2 + K2SO4 -> BaSO4 + 2KNO3

5, FeCl3 + 3KOH -> Fe(OH)3 + 3KCl

6, SO2 + H2O -> H2SO3

7, P2O5 + 6NaOH -> 2Na3PO4 + 3H2O

8, SO3 + 2KOH -> K2SO4 + H2O

9, Al2S3 + 6HCl -> 3H2S + 2AlCl3

10, Ca(HCO3)2 + 2HCl -> CaCl2 + 2CO2 + 2H2O

11, chưa cân bằng xong

12, 2K + 2H2O -> 2KOH + H2

13, Fe3O4 + 8HCl -> 2FeCl3 + FeCl2 + 4H2O

14, Ca(OH)2 + FeSO4 -> CaSO4 + Fe(OH)2

1. \(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)
2. \(Ca\left(OH\right)_2+H_2SO_4\rightarrow CaSO_4+2H_2O\)
3. \(2Al+6HCl\rightarrow2AlCl_3+3H_2\uparrow\)
5. \(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3\downarrow+3KCl\)
6. \(SO_2+H_2O\rightarrow H_2SO_3\)
7. \(P_2O_5+6NaOH\rightarrow2Na_3PO_4+3H_2O\)
8. \(SO_3+2KOH\rightarrow K_2SO_4+H_2O\)
9. \(Al_2S_3+6HCl\rightarrow3H_2S\uparrow+2AlCl_3\)
12. \(2K+2H_2O\rightarrow2KOH+H_2\uparrow\)
13. \(Fe_3O_4+8HCl\rightarrow2FeCl_3+FeCl_2+4H_2O\)
14. \(Ca\left(OH\right)_2+FeSO_4\rightarrow CaSO_4+Fe\left(OH\right)_2\)

1) Fe₂O₃ + 6HCl\(\rightarrow\) 2FeCl₃ + 3H₂O.

2) Ca(OH)₂ + H₂SO₄\(\rightarrow\) CaSO₄ + 2H₂O

a, MgO

b, FeO

c, CO₂

d, P₂O₅

e, SO₃

f, Na₂O

g, Na₂O

h, Fe₂O₃

i, SO₂

k, CaO

 MgO

 FeO

 CO₂

, P₂O₅

 SO₃

 Na₂O

, Na₂O

, Fe₂O₃

 SO₂,

CaO

a, MgO

b, FeO

c, CO₂

d, P₂O₅

e, SO₃

f, Na₂O

g, Na₂O

h, Fe₂O₃

i, SO₂

k, CaO

(Đã sửa lại những lỗi sai nhé)

1) H₂SO₄ 
2) H₂SO₃ 
3) Fe(OH)₂ 
4) KHCO₃ 
5) MgCl₂ 
6) Al₂(SO₄)₃
7) Na₂O
8) KOH
9) P₂O₅ 
10) Ca(OH)₂

Axit sunfuric : \(H_2SO_4\)

Axit sunfurơ : \(H_2SO_3\)

Sắt(II) hidroxit : \(Fe\left(OH\right)_3\)

Kali hidrocacbonat : \(KHCO_3\)

Magie clorua : \(MgCl_2\)

Nhôm sunfat : \(Al_2\left(SO_4\right)_3\)

Natri oxit : \(Na_2O\)

Kali hidroxit : \(KOH\)

Điphotpho pentaoxit : \(P_2O_5\)

Kali hidro đi photpho pentaoxit K(hpo2)o5)

Viết lần lượt nhé: H₂SO₄, H₂SO₃, Fe(OH)₂, KHCO₃, MgCl₂, Al₂(SO₄)₃, Na₂O, KOH, P₂O₅, Ca(H₂PO₄)₂

Có CTHH lần lượt theo hàng sau (từ trái sang phải):

\(H_2SO_4;H_2S;Fe\left(OH\right)_2;KHCO_3;MgCl_2;Al_2\left(SO_4\right)_3;Na_2O;KOH;P_2O_5;Ca\left(H_2PO_4\right)_2\)

\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)

\(Ca\left(OH\right)_2+CO_2\rightarrow CaCO_3+H_2O\)

\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)

Mình viết lần lượt nha

K2O, ZnO, CaO, NO2 , CO , SO3 , FE2O3

Canxi oxit: CaO : 56đvc

Caxi nitrat : Ca(NO3)2:164đvc

Bari hidroxit:Ba(OH)2:171đvc

Bari sunfat:BaSO4 :233đvc

Lưu huỳnh đioxit: SO2 :64đvc

Kali sunfit: K2SO3:158đvc

đồng hidroxit: Cu(OH)2 : 98đvc

Axxit clohidric: HCl :36,5đvc

Kaliclorua:KCl:74,5đvc

axxit sunfuric:H2SO4 :98đvc

Lưu huỳnh trioxit :SO3 :80đvc

Sắt (III) Clorua: FeCl3 :162,5đvc

Bari nitrat:Ba(NO3)2:261đvc

Đồng (II) oxit: CuO :80đvc

Cabonat:CO3 :60đvc

Nhôm sunfat:Al2(SO4)3:342đvc

Natriphotphat: Na3PO4:164đvc

Magie clo rua: MgCl2 :95đvc

Mangan ddioxxit:MnO2:87đvc

Điphotphopentaoxit:P2O5:142đvc

a+b

- CaO = 56 đvC

Ca(NO3)2 = 164 đvC

Ba(OH)2 : 171 đvC

BaSO4 = 233 đvC

SO2 = 64đvC

K2SO3 = 158đvC

Cu(OH)2=98đvC

HCl= 36,5 đvC

KCl = 74,5 đvC

H2SO4 = 98đvC

Tương tự làm tiếp đi nhé