Cevaplar

2013-01-19T21:39:44+02:00

1-2Na+O2 = Na2O

 

2- C2H6+5/2 O2 = 2CO2+3H20

 

3- Al+3 HBr = AlBr3+3/2 H2

 

4-  3 Ca (OH)2+ 2 H3PO4 = Ca3 (PO4) 2 +  6 H20

1 5 1