Ответы и объяснения

2012-10-22T17:42:41+00:00

2N2+5O2-->2N2O5

2Cu+S-->Cu2s

Fe+2HCl-->FeCl2+H2

4Al+3O2-->2Al2O3

K+2H2O-->K(OH)2+H2

2012-10-22T17:46:55+00:00

2H2+O2-->2H2O

2Cu+S-->Cu2S

Fe+2HCI-->FeCI2+H2

4Al+3O2-->2Al2O3

K+2H2O-->K(OH)2+H2