is CuSo4 +H2S =CuS +H2So4 a double displacement reaction ?
1. Yes the reaction is a double displacement reaction.
2. This is because Cu2+ displaces S2- (sulphide ions) from hydrogen sulphide, and H+ displace SO42- (sulphate ions) from Copper sulphate solution. Thus, double displacement is taking place.
2. This is because Cu2+ displaces S2- (sulphide ions) from hydrogen sulphide, and H+ displace SO42- (sulphate ions) from Copper sulphate solution. Thus, double displacement is taking place.