Предмет: Химия, автор: anastasiavasileva200

1) Составьте уравнение к реакции 2H[+] + CO3[2-] = CO2+H2O
2)Укажите окислитель, восстановитель;расставьте коэффициенты
S+O2=SO2
P+HNO3(К)=H3PO4+NO2+H2O Заранее спасибо:)

Ответы

Автор ответа: svetka1574

1) 2HCl+Na2CO3=2NaCl+CO2+H2O

2) S+O2=SO2

S(0)-4e=S(+4). 1. ок-ие

в-ль

O2(0)+4=2O(-2). 1 в-ие

ок-ль

P+5HNO3=H3PO4+5NO2+H2O

P(0)-5e=P(+5). 1. ок-ие

в-ль

N(+5)+1e=N(+4). 5. в-ие

ок-ль

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Предмет: Математика, автор: Даша123456789101111

1) Составьте уравнение к реакции 2H[+] + CO3[2-] = CO2+H2O 2)Укажите окислитель, восстановитель;расставьте коэффициенты S+O2=SO2 P+HNO3(К)=H3PO4+NO2+H2O Заранее спасибо:)

Ответы

1) Составьте уравнение к реакции 2H[+] + CO3[2-] = CO2+H2O
2)Укажите окислитель, восстановитель;расставьте коэффициенты
S+O2=SO2
P+HNO3(К)=H3PO4+NO2+H2O Заранее спасибо:)