(１) 2H2O2→2H2O+O2 (MnO2は触媒)
(２) 2H2O→2H2+O2
(３) Zn+H2SO4→ZnSO4+H2
(４) CaCO3+2HCl→CaCl2+H2O+CO2
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(１) 2H2O2→2H2O+O2 (MnO2は触媒)
(２) 2H2O→2H2+O2
(３) Zn+H2SO4→ZnSO4+H2
(４) CaCO3+2HCl→CaCl2+H2O+CO2
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are also looking at these questions 😉
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