4)MnO2-KCl-AgCl-Cl2-KClO3 5)MnO2-CaOCl2-CaCO3-Co2-HClO 6)MnO2-Br2-I2-AgI

Question

4)MnO2-KCl-AgCl-Cl2-KClO3
5)MnO2-CaOCl2-CaCO3-Co2-HClO
6)MnO2-Br2-I2-AgI

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Kylie 2 tuần 2021-11-24T09:37:58+00:00 2 Answers 3 views 0

Answers ( )

    0
    2021-11-24T09:38:58+00:00

    4)

    KClO3+3MnO2+6NaOH→3H2O+KCl+3Na2MnO4

    KCl+AgNO3–>AgCl+KNO3

    2AgCl–>2Ag+Cl2 (Nhiệt độ phòng , có ánh sáng)

    3Cl2+6KOH–>H2O+5KCl+KClO3 (Nhiệt độ)

    5)

    CaOCl2+MnSO4+2NaOH→H2O+MnO2+Na2SO4+CaCl2

    2CaOCl2+H2O+CO2→CaCO3+CaCl2+2HClO

    CaCO3–>CaO+CO2 (Nhiệt độ)

    H2O+NaClO+CO2–>NaHCO3+HClO

    6)

    MnO2+4HBr→Br2+2H2O+MnBr2

    Br2+2HI→I2+2HBr

    2Ag+I2→2AgI

    0
    2021-11-24T09:39:15+00:00

    4)

    3 MnO2 + KClO3 + 6 NaOH –> 3 Na2MnO4 + KCl + 3 H2O

    KCl + AgNO3 –> AgCl + KNO3

    2 AgCl –> 2 Ag + Cl2

    3 Cl2 + 6 KOH –> 5 KCl + KClO3 + H2O

    5)

    CaOCl2 + MnSO4 + 2 NaOH –> MnO2 + Na2SO4 + CaCl2 + H2O

    2 CaOCl2 + H2O + CO2 –> CaCO3 + CaCl2 + 2 HClO

    CaCO3 –> CaO + CO2

    NaClO + CO2 + H2O –> NaHCO3 + HClO

    6)

    MnO2 + 4 HBr –> Br2 + 2 H2O + MnBr2

    Br2 + 2 HI –> I2 + 2 HBr

    2 Ag + I2 –> 2 AgI

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