Hydrogen exist as diatomic. H2.Originally posted by FaTal.ZenGetSu:very easy. because the Mg + H2SO4 -> MgSO4 + 2H need to balance.
so if u put Mg + H2SO4-> MgSO4 + H. Look at this and see if it balance.
if not balance,just add a 2 infront of H and is balance.
when there is only a substance,there is no charge. this should be sec 3 work.
we also need to balance the charge as wellOriginally posted by FaTal.ZenGetSu:very easy. because the Mg + H2SO4 -> MgSO4 + 2H need to balance.
so if u put Mg + H2SO4-> MgSO4 + H. Look at this and see if it balance.
if not balance,just add a 2 infront of H and is balance.
when there is only a substance,there is no charge. this should be sec 3 work.

so i correct laOriginally posted by wishboy:dilute acid + metal -----> salt + hydrogen (H2)
if im not wrong (although i think confirm wrong), hydrogen exists as a diatomic molecule
wa talk untill so cheem but then realise its all bull crapOriginally posted by FaTal.ZenGetSu:very easy. because the Mg + H2SO4 -> MgSO4 + 2H need to balance.
so if u put Mg + H2SO4-> MgSO4 + H. Look at this and see if it balance.
if not balance,just add a 2 infront of H and is balance.
when there is only a substance,there is no charge. this should be sec 3 work.