Chemistry – chemical symbols of hydroxide, nitrate, ammonium, sulfate and carbonate, point expression? Chemistry ----------------------------------?
Hydroxyl OH-
Nitrate NO3-
Ammonium NH4+
SO42-
Carbonate CO32-
Hydroxysulfate Nitrate Ammonium Carbonate How Easy to Back
According to valence memory
Aerobic positive valence
OH hydrogen +1 oxygen-2
Sulfate SO4 sulfur +6
Nitrate NO3 N+5
Carbonate CO3 Carbon+4
Ammonium NH4N-3(Junior Only Positive Valence Group)