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222-9+11+12:2*14+14 = ? ( )

Hóa học Lớp 9: 1. CaCO3 + MgCl2 → 2. Fe3O4 + HCl → 3. Na2O + SO3 → 4. K2CO3 + CaCl2 → 5. BaCO3 + H2SO4 → 6. CuCl2 + AgNO3 → 7. KNO3 + ZnSO4 → 8. MgSO4

Hóa học Lớp 9: 1. CaCO3 + MgCl2 →
2. Fe3O4 + HCl →
3. Na2O + SO3 →
4. K2CO3 + CaCl2 →
5. BaCO3 + H2SO4 →
6. CuCl2 + AgNO3 →
7. KNO3 + ZnSO4 →
8. MgSO4 + KOH →
9. FeSO4 + HCl →
10. CuO + H2SO4 →
11. P2O5 + H2O →
12. Cu + HCl →
13. Al + Cu(NO3)2 →
14. Ag2O + HCl →
15. BaCl2 + NaOH →, giúp em giải bài hóa này ạ, em cảm ơn thầy cô và các bạn nhiều.

Comments ( 2 )

  1. 1. 2CaCO3 + MgCl2 → CaMg(CO3)2 + CaCl2
    2. Fe3O4 + 8HCl → 2FeCl3 + FeCl2 + 4H2O
    3. Na2O + SO3 → Na2SO4
    4. K2CO3 + CaCl2 → 2KCl + CaCO3
    5. BaCO3 + H2SO4 → BaSO4 + H2O + CO2
    6. CuCl2 + 2AgNO3 → 2AgCl + Cu(NO3)2
    7. ZnSO4 + 2KNO3 → Zn(NO3)2 + K2SO4
    8. MgSO4 + 2KOH → Mg(OH)2 + K2SO4
    9. FeSO4 + 2HCl → H2SO4 + FeCl2
    10.  CuO + H2SO4 → CuSO4 + H2O
    11. P2O5 + 3H2O → 2H3PO4
    12. Cu + 2HCl → CuCl2 + H2
    13. 3Cu(NO3)2 + 2Al → 3Cu + 2Al(NO3)3
    14. Ag2O + 2HCl → 2AgCl + H2O
    15. BaCl2 + 2NaOH → Ba(OH)2 + 2NaCl

  2. $1. MgCl_{2} + CaCO_{3} → MgCO_{3} + CaCl_{2}$$$
    $2.Fe_{3}O_{4} + HCl → FeCl_{3} + FeCl_{2} + H_{2}O$
    $3.Na_{2}O + SO_{3} → Na_{2}SO_{4}$
    $4.K_{2}CO_{3} + CaCl_{2} → CaCO_{3} + KCl$
    $5.BaCO_{3} + H_{2}SO_{4} → H_{2}O + CO_{2}↑ + BaSO_{4}↓$
    $6.CuCl_{2} + AgNO_{3} → AgCl + Cu(NO_{3})_{2}$
    $7.KNO_{3} + ZnSO_{4} → Zn(NO_{3})_{2} + K_{2}SO_{4}$
    $8.MgSO_{4} + KOH → Mg(OH)_{2} K_{2}SO_{4}$
    $9.FeSO_{4} + HCl → H_{2}SO_{4} + FeCl_{2}$
    $10.CuO + H_{2}SO_{4} → CuSO_{4} + H_{2}O$
    $11.P_{2}O_{5} + H_{2}O → H_{3}PO_{4}$
    $12.Cu + HCl → CuCl_{2} + H_{2}$
    $13.Al + Cu(NO3)2 → Cu + Al(NO3)3$
    $14.Ag2O + HCl → AgCl + H2O$
    $15.BaCl2 + NaOH → NaCl + Ba(OH)2$

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222-9+11+12:2*14+14 = ? ( )