Why is the formula for Lithium Aluminum Hydride LiAlH4?
What i do not understand is the 4. the charge of luthium is +1 Hydrogen= +1 and aluminum = +3
the charges are different so a cross is needed by Li and H are 1 so...? where did the 4 come from?
- ?Lv 41 decade agoFavorite Answer
If i understand this correctly consider that Al is both a +3 or a -5. using the -5 for Al balances the equation.
- RaeLv 44 years ago
All correct except: nitrogen is N2 (well if it only ask for the elemental symbol then N is okay), and calcium sulfate is CaSO4 Moreover, calcium carbonate is CaCO3 and aluminum hydride is AlH3. But These are quite minor. Seems like typos.