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fyutk33
@fyutk33
October 2021
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Решите тест по химии, выбрав правильные ответы. с 14-72 по 14-86
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mrvladimir2
Verified answer
14-72. 3) СuO+2HCl = CuCl2+H2O
Fe2O3+6HCl = 2FeCl3 + 3H2O
CdO+2HCl = CdCl2+H2O
ZnO +2HCl = ZnCl2+H2O
14-73. 1) BaCl2 + HCl≠
14-74. 2) Ag+HCl≠
14-75. 3) CaCO3+2HCl = CaCl2+H2O+CO2↑
CaSO3+2HCl = CaCl2 + H2O + SO2↑
14-76. 4) CuO+2HCl = CuCl2+H2O
14-77. 1) KAl(OH)4 + 4HCl = KCl+AlCl3+4H2O
2Fe+6HCl = FeCl3+3H2↑
MgCO3+2HCl = MgCl2+H2O+CO2↑
14-78. 3) H2+Cl2=2HCl
14-79. 1) KHCO3 + HCl = KCl+H2O+CO2↑
Ba+2HCl = BaCl2+H2↑
Fe(OH)2 + 2HCl = FeCl2+2H2O
14-80. 3) CuO + 2HCl = CuCl2+H2O
14-81. 2) 2HBr⁻+Cl₂⁰=2HCl⁻+Br₂⁰
Cl₂⁰+2e⁻=2Cl⁻ - окислитель
14-82. 2) AgNO3 + NaCl = AgCl↓ + NaNO3
15. 3) Ag⁺ + Cl⁻ = AgCl
16. 4) AgNO₃
14-82. 2) HClO₄
14-83. 4) Cl₂O₇
14-84. 4) +5
14-85. 2)
14-86. 1)
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Answers & Comments
Verified answer
14-72. 3) СuO+2HCl = CuCl2+H2OFe2O3+6HCl = 2FeCl3 + 3H2O
CdO+2HCl = CdCl2+H2O
ZnO +2HCl = ZnCl2+H2O
14-73. 1) BaCl2 + HCl≠
14-74. 2) Ag+HCl≠
14-75. 3) CaCO3+2HCl = CaCl2+H2O+CO2↑
CaSO3+2HCl = CaCl2 + H2O + SO2↑
14-76. 4) CuO+2HCl = CuCl2+H2O
14-77. 1) KAl(OH)4 + 4HCl = KCl+AlCl3+4H2O
2Fe+6HCl = FeCl3+3H2↑
MgCO3+2HCl = MgCl2+H2O+CO2↑
14-78. 3) H2+Cl2=2HCl
14-79. 1) KHCO3 + HCl = KCl+H2O+CO2↑
Ba+2HCl = BaCl2+H2↑
Fe(OH)2 + 2HCl = FeCl2+2H2O
14-80. 3) CuO + 2HCl = CuCl2+H2O
14-81. 2) 2HBr⁻+Cl₂⁰=2HCl⁻+Br₂⁰
Cl₂⁰+2e⁻=2Cl⁻ - окислитель
14-82. 2) AgNO3 + NaCl = AgCl↓ + NaNO3
15. 3) Ag⁺ + Cl⁻ = AgCl
16. 4) AgNO₃
14-82. 2) HClO₄
14-83. 4) Cl₂O₇
14-84. 4) +5
14-85. 2)
14-86. 1)