the correct answer would be mixture because compound uses the same element
It is not a chemical change because a chemical change is when the substance changes to a whole new substance (ex rust on a car) ex2(fire burning wood) it’s not the same substance) it is a physical change because it’s still water basically (ex: like melting ice, it’s still ice( not a whole different substance)
Ammonia is the compound NH3
Hydrogen and oxygen! Happy holidays btw
