Memorising Polyatomic Ions (1 Viewer)

[alussovsky]

Which polyatomic ions do we need to memorise for preliminary and HSC chemistry? Also, which... uh, no idea how to describe it, but chemical formulas for substances do we need to memorise as well? Like, hydrochloric acid is HCl, acetate is C2H3O2, sulphuric acid is H2SO4, etc. you know?

 

[Queenroot]

Any common gas

 

[supR]

The chemicals that you encounter in the dotpoints will be necessary to remember, like HCl and C2H3O2 etc