Ответ:
Объяснение:
7) 3Cl2 - 3 молекулы хлора
2Cu(OH)2 - 2 молекулы гидроксида меди(II)
8) Mr(Al2O3) = 27*2 + 16*3 = 102
Mr(Fe(OH)3) = 56 + 16*3 + 1*3 = 107
9) Na2O, P2O5, N2O3, H2S, SO3
Fe(III)O(II), N(I)O(II), S(IV)O(II), Ca(II)O(II), Mn(V)O(II)
10) 2Fe + 3Cl2 = 2FeCl3
2H2S + 3O2 = 2H2O + 2SO2
K2O + H2O = 2KOH
2Al + 3H2SO4 = Al2(SO4)3 + 3H2
2C2H6 + 7O2 = 4CO2 + 6H2O
FeCl2 + 2NaOH = Fe(OH)2 +2 NaCl
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Answers & Comments
Ответ:
Объяснение:
7) 3Cl2 - 3 молекулы хлора
2Cu(OH)2 - 2 молекулы гидроксида меди(II)
8) Mr(Al2O3) = 27*2 + 16*3 = 102
Mr(Fe(OH)3) = 56 + 16*3 + 1*3 = 107
9) Na2O, P2O5, N2O3, H2S, SO3
Fe(III)O(II), N(I)O(II), S(IV)O(II), Ca(II)O(II), Mn(V)O(II)
10) 2Fe + 3Cl2 = 2FeCl3
2H2S + 3O2 = 2H2O + 2SO2
K2O + H2O = 2KOH
2Al + 3H2SO4 = Al2(SO4)3 + 3H2
2C2H6 + 7O2 = 4CO2 + 6H2O
FeCl2 + 2NaOH = Fe(OH)2 +2 NaCl