Предмет: Химия, автор: nastenkaa55

4в и 5 б и 2 пожалуйста

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Автор ответа: densolovev228

4В)
4P+5O2=(t)2P2O5
P2O5+3H2O=2H3PO4
H3PO4+3KOH=K3PO4+3H2O

5Б)
CuO+H2SO4=CuSO4+H2O
CuO+2HNO3=Cu(NO3)2+H2O
Cu(NO3)2+2NaOH=Cu(OH)2+2NaNO3
CuSO4+2NaOH=Na2SO4+Cu(OH)2
Cu(OH)2=(t) CuO+H2O

2)
А) Fe2O3+6HCl=2FeCl3+3H2O

FeCl3+ 3NaOH=Fe(OH)3+3NaCl

2Fe(OH)3=(t) Fe2O3+ 3H2O

Б)
BaO+2HCl=BaCl2+H2O
BaO+H2O=Ba(OH)2
Ba(OH)2+2HCl=BaCl2+2H2O

Автор ответа: vyanochka

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