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russoklasso
@russoklasso
July 2022
2
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20 БАЛЛОВ!!!!!!Помогите пожалуйста
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gloriyaglobazh
Si+O2 = SiO2
4K+O2 = 2K2O
H2 + S = H2S
2H2 + O2 = 2H2O
2Cu+O2 = 2CuO
4Fe + 3O2 = 2Fe2O3
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russoklasso
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yf3156
2mg+o2--2mgo
2Si+2O2--2SiO2
4K+O2--2K2O
h2+S--H2S
2H2+ O2--2H2O
2Cu+O2--2cuo
4Fe+3O2--2Fe2O3
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yf3156
там вторая реакция неправильно . просто убери коофицииенты
russoklasso
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Answers & Comments
4K+O2 = 2K2O
H2 + S = H2S
2H2 + O2 = 2H2O
2Cu+O2 = 2CuO
4Fe + 3O2 = 2Fe2O3
2Si+2O2--2SiO2
4K+O2--2K2O
h2+S--H2S
2H2+ O2--2H2O
2Cu+O2--2cuo
4Fe+3O2--2Fe2O3