- sixth form...There is 1+ and 3- So we need. NH4+NH4 to balance the P04 Giving the formula...
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- sixth form...There is 1+ and 3- So we need. NH4+NH4 to balance the P04 Giving the formula (NH4)3P03 Nitride ion Lithium ion Li There is 1+ and 3- So we need: Li Li Li to balance