Jeremywhitts
Jan 30, 2007, 05:20 PM
Can you please balance these for me please
Zn+O2+ZNO2
Copper(group 2)+hydrochloric acid=Copper(2)chloride +oxide
pwd77
Feb 4, 2007, 08:36 AM
Can you please balance these for me please
Zn+O2+ZNO2
Copper(group 2)+hydrochloric acid=Copper(2)chloride +oxide
2Zn + O2 -> 2ZnO
Zinc oxidizes to +2 state, oxygen reduces to -2, so two Zn are required for two O
Cu + 2HCL -> CuCl2 + H2
Cu oxidizes to +2 state, and 1 e- is required to reduce a hydrogen atom, so one Cu will reduce two H, which forms diatomic H2 gas