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1. $H_{2}SO_{4}+Mg(OH)_{2}\rightarrow 2H_{2}O+MgSO_{4}$
3. $3Ca(OH)_{2}+2Na_{3}PO_{4}\rightarrow Ca_{3}(PO_{4})_{2}+6NaOH$
5. $Ba(OH)_{2}+CuSO_{4}\rightarrow Cu(OH)_{2}+BaSO_{4}$ ($BaSO_{4}$ không tan)
6. $AgNO_{3}+KCl \rightarrow AgCl + KNO_{3}$ ($AgCl$ không tan)
8. $Ba(NO_{3})_{2}+FeSO_{4} \rightarrow Fe(NO_{3})_{2} + BaSO_{4}$
10. $Na_{2}CO_{3}+CaCl_{2} \rightarrow CaCO_{3}+2NaCl$ ($CaCO_{3}$ không tan)
1) H2SO4 + MgO → MgSO4 + H2O
2) 2Fe(OH)3 + 3H2SO4 → Fe2(SO4)3 + 6H2O
3) 2Na3PO4 + 3Ca(OH)2 → 6NaOH + Ca3(PO4)2
4) ZnCO3 + 2HNO3 → Zn(NO3)2 + CO2 + H2O
5) Ba(OH)2 + CuCl2 → BaCl2 + Cu(OH)2
6) KCl + AgNO3 → KNO3 + AgCl
7) Na2SO3 + H2SO4 → Na2SO4 + SO2 + H2O
8) FeSO4 + Ba(NO3)2 → Fe(NO3)2 + BaSO4
9) 2H3PO4 + 3Mg → Mg3(PO4)2 + 3H2
10) CaCl2 + Na2CO3 → 2NaCl + CaCO3
a. MgCO3 + 2HCl \(\rightarrow\) MgCl2 + CO2 + H2O
b. Al2(SO4)3 + 6NaOH \(\rightarrow\) 2Al(OH)3 + 3Na2SO4
c. CaCO3 \(\underrightarrow{t^o}\) CaO + CO2
d. 2NaHCO3 \(\underrightarrow{t^o}\) Na2CO3 + CO2 + H2O
e. K2SO4 + BaCl2 \(\rightarrow\) BaSO4 + 2KCl
f. Cu + 2AgNO3 \(\rightarrow\) Cu(NO3)2 + 2Ag
h. 2Al + 3Cu(NO3)2 \(\rightarrow\) 2Al(NO3)3 + 3Cu
i. Mg(NO3)2 + 2NaOH \(\rightarrow\) Mg(OH)2 + 2NaNO3
1) FeO +2 HCl -> FeCl2 + H2O
2) 2HCl + Ba(OH)2 -> BaCl2 +2 H2O
3) H2SO4 + Na2SO3 -> Na2SO4 + H2O + SO2
4) SO3 + H2O-> H2SO4
5) CuO +2HCl -> CuCl2 +H2O
6) CuCl2 +2 NaOH -> 2NaCl + Cu(OH)2
7) N2O5+H2O -> 2HNO3
8) 2H2SO4đặc nóng + Cu -> CuSO4 +2 H2O + SO2
9) Al2O3 +6HCl-> 2AlCl3 + 3H2O
10) H2SO4 + K2CO3 ->K2SO4+H2O+SO2
11) Na2O+SO2-> Na2SO3
12) Fe +2 HCl -> FeCl2 + H2
13) FeO + H2SO4 -> FeSO4 + H2O
14) 2HCl + Na2SO3 ->2NaCl+H2O+SO2
15)3CaO+P2O5-> Ca3(PO4)2
a)
4Al + 3O2\(\rightarrow\) 2Al2O3
Al2O3 +6HNO3\(\rightarrow\) 2Al(NO3)3 + 3H2O
Al(NO3)3 + 3NaOH \(\rightarrow\)Al(OH)3 + 3NaNO3
2Al(OH)3 \(\underrightarrow{^{to}}\) Al2O3 + 3H2O
Al2O3 +6HCl \(\rightarrow\) 2AlCl3 + 3H2O
AlCl3 không điện phân nóng chảy được \(\rightarrow\) Al2O3 \(\underrightarrow{^{\text{đpnc}}}\)2Al + \(\frac{3}{2}\)O2
b) 2Fe + 3Cl2 \(\rightarrow\) 2FeCl3
FeCl3 + 3NaOH \(\rightarrow\)Fe(OH)3 + 3NaCl
2Fe(OH)3\(\rightarrow\)Fe2O3 + 3H2O
Fe2O3 + 3CO \(\rightarrow\)2Fe + 3CO2
Fe + 2HCl\(\rightarrow\) FeCl2 + 2
FeCl2 + 2AgNO3\(\rightarrow\)Fe(NO3)2 + 2AgCl (thường ra Fe+3 )
c) 2Mg + O2\(\rightarrow\)2MgO
MgO + 2HCl \(\rightarrow\) MgCl2 + H2O
MgCl2 + 2NaOH \(\rightarrow\) Mg(OH)2 + 2NaCl
Mg(OH)2 + H2SO4 \(\rightarrow\)MgSO4 + 2H2O
MgSO4 + BaCl2 \(\rightarrow\) MgCl2 + BaSO4
d) Cu(OH)2\(\underrightarrow{^{to}}\) CuO + H2O
CuO + H2SO4\(\rightarrow\)CuSo4 + H2O
CuSO4 + BaCl2 \(\rightarrow\) BaSO4 + CuCl2
CuCl2 + 2AgNO3 \(\rightarrow\) Cu(NO3)2 + 2AgCl
Fe + Cu(NO3)2\(\rightarrow\) Fe(NO3)2 + Cu
Cu + \(\frac{1}{2}\)O2 \(\rightarrow\) CuO
e) 4Na + O2\(\rightarrow\) 2Na2O
Na2O + H2O \(\rightarrow\) 2NaOH
2NaOH + CO2 \(\rightarrow\)Na2CO3 + H2O
Na2CO3 + H2SO4\(\rightarrow\) Na2SO4 + CO2 + H2O
Na2SO4 + BaCl2 \(\rightarrow\)BaSO4 + 2NaCl
NaCl + AgNO3\(\rightarrow\) AgCl + NaNO3
f) Fe3O4 + 4CO\(\rightarrow\) 3Fe + 4CO2
2Fe + 3Cl2 \(\rightarrow\)2FeCl3
FeCl3 + 3AgNO3 \(\rightarrow\) Fe(NO3)3 +3AgCl
Fe(NO3)3 + 3NaOH \(\rightarrow\) Fe(OH)3 + 3NaNO3
Lần sau đăng tách riêng ra nhé
Nhìn rối mắt lắm
a) Al -> Al2O3-> Al(NO3)3-> Al(OH)3 -> Al2O3 -> AlCl3 -> Al
(1) 2A1 + O2 t0→ Al2O3
(2) Al2O3 + 6HCl → 2AlCl3 + 3H2O
(3) Al(NO3)3 + 3NaOH (vừa đủ) → 3NaNO3 + Al (OH)3
(4) 2Al(OH)3 →t0 Al2O3+ ЗН2О
(5) 2Al2O3 đpnc−−→đpnc 4Al + 3O2
(6) 2Al + 3Cl2 t→t0 2AlCl3
b) Fe -> FeCl3 -> Fe(OH)3 -> Fe2O3-> Fe -> FeCl2 -> Fe(NO3)3
(1) 2Fe + 3Cl2 → 2FeCl3
(2) FeCl3 + 3NaOH → 3NaCl + Fe(OH)3
(3) 2Fe(OH)3 → Fe2O3 + 3H2O
(4) Fe2O3 + H2→ Fe + H2O
(5) 3Fe + 2HCl → 2FeCl2 +H2↑
(6) Fe(NO3)3+3NaOH ➞Fe(OH)3 +3Na(NO3)
dài wá mình trả lời những câu còn lại sau : thông cảm cho mk nha❗❕
\(\text{2Na+2H2O}\rightarrow\text{2NaOH+H2↑}\)
\(\text{2NaOH(đậm đặc)+CO2}\rightarrow\text{Na2CO3+H2O}\)
\(\left\{{}\begin{matrix}\text{CO2+NaOH}\rightarrow\text{NaHCO3}\\\text{H2CO3+NaOH}\rightarrow\text{NaHCO3+H2O}\end{matrix}\right.\)
\(\text{Na2CO3+Ca(OH)2}\rightarrow\text{CaCO3↓+2NaOH}\)
\(\text{CaCO3 + 2HCl → H2O + CO2 + CaCl2}\)
\(\text{CaCl2+Na2CO3}\rightarrow\text{CaCO3↓+2NaCl}\)
\(\text{CaCO3(thể rắn)+CO2+H2O}\rightarrow\text{Ca(HCO3)2(dung dịch pha loãng)}\)
\(\text{Ca(HCO3)2 → CaCO3 + H2O + CO2}\)
\(\text{Ca(HCO3)2 + 2HCl → 2H2O + 2CO2 + CaCl2}\)
\(\text{2Li3PO4+3CaCl2(đậm đặc)}\rightarrow\text{6LiCl↓+Ca3(PO4)2↓}\)
\(\text{NaHCO3+HCl}\rightarrow\text{NaCl+CO2↑+H2O}\)
\(\text{2NaCl+2H2O}\rightarrow\text{H2↑+2NaOH+Cl2↑}\)
1.a)
(1) SO2 + H2O -> H2SO3
(2)H2SO3 + CaO -> CaSO3 \(\downarrow\) + H2O
(3) CaSO3 + 2HCl -> CaCl2 + H2O + SO2 \(\uparrow\)
(4) CaCl2 + 2HNO3 -> Ca(NO3)2 +2 HCl
b)
(1) CO2 + H2O -> H2CO3
(2)H2CO3 + BaO -> BaSO3 \(\downarrow\) + H2O
(3) BaSO3 + 2HCl -> BaCl2 + H2O + SO2 \(\uparrow\)
(4) BaCl2 + H2SO4 -> BaSO4 \(\downarrow\) +2 HCl
2 . a)
- nhỏ các dd trên lên giấy quỳ :
+ quỳ tím hoá đỏ -> HCl ; H2SO4 ( nhóm I)
+ quỳ tím hoá xanh -> NaOH ; Ca(OH)2 (nhóm II)
- cho các dd ở nhóm I vào BaCl2
+ không hiện tượng -> HCl
+ tạo kết tủa -> H2SO4
H2SO4 + BaCl2 -> BaSO4 \(\downarrow\) +2 HCl
- Cho các dd ở nhóm II vào NaCl :
+ không hiện tượng -> NaOH
+ tạo kết tủa -> Ca(OH)2
Ca(OH)2 + 2NaCl -> 2NaOH + CaCl2 \(\downarrow\)
1/ FeO + H2SO4-> FeSO4 +H2O
2/2 HCl + Na2SO3 -> 2NaCl+H2O+SO2
3/ 4CaO+3P2O5-> 2Ca2(PO4)3
4/ K2O+H2O ->2 KOH
5/CuO+H2SO4-> CuSO4 + H2O
6/ 2HCl + Ca(OH)2 -> CaCl2 + 2H2O
7/CaO+CO2-> CaCO3
8/ 2HCl + Na2SO3 ->2NaCl+H2O+SO2
9/ Fe2O3 + 6HCl => 2FeCl3 + 3H2O
10/ H2SO4+ Cu(OH)2 -> CuSO4 +2 H2O
11/ 2Al +6 HCl-> 2AlCl3+ 3H2
12/2 H2SO4 đặc,nóng + Cu -> CuSO4 + SO2 + 2H2O
13/ K2O+SO3-> K2SO4
14/ 3H2SO4 + 2Fe(OH)3 -> Fe2(SO4)3 + 6H2O
15/ Na2SO4 + Ba(OH)2 -> BaSO4 + 2NaOH
16/ H2SO4 + K2SO3 -> K2SO4 + SO2 + H2O
17/3 H2SO4 + 2Fe(OH)3 -> Fe2(SO4)3 +6 H2O
18/ 2NaOH+SO2 -> Na2SO3 + H2O
19/ C12H22O11 -> 12C+11H2O
20/ 2HCl + Na2CO3 ->2NaCl+H2O+CO2
1. Ba(NO3)2 + H2SO4 => 2HNO3 + BaSO4 ↓
2. Fe(NO3)3 + 3NaOH => 3NaNO3 + Fe(OH)3 ↓
3. ZnCl2 + Mg => MgCl2 + Zn
4. H2SO4 + Cu(OH)2 => CuSO4 + 2H2O
5. Na2CO3 + 2HCl => 2NaCl + H2O + CO2 ↑
6. 2NaHCO3 + Ba(OH)2 => Na2CO3 + BaCO3 ↓ + 2H2O
7. BaCl2 + FeSO4 => BaSO4 ↓ + FeCl2
8. AgNO3 + HCl => HNO3 + AgCl ↓
9. CaCl2 + 2AgNO3 => 2AgCl ↓ + Ca(NO3)2
10. BaCl2 + Na2CO3 => 2NaCl + BaCO3 ↓
11. BaS + H2SO4 => BaSO4 ↓ + H2S ↑
12. BaSO3 + 2HCl => BaCl2 + H2O + SO2 ↑
13. Ba(HCO3)2 + CaCl2 => BaCl2 + CaCO3 ↓ + H2O + CO2 ↑