There are 3!
uhh no there is only two things in pure table salt - as illidan said
I remember I was palying Dear Esther and I-quickly-noticed what the formula in the shed was. If I remember right it was Ethanol. I'm not able to recall what the other one that's written was - I think it was NH
2(OH)
2, but I have no idea what that is 'cause we haven't really covered much stuff like that yet.