March 2, 2015

Homework Help: Chemistry

Posted by Lacey on Wednesday, April 11, 2007 at 5:54pm.

Wow, ok, that helps a LOT!! I guess you can't very easily balance an equation that can never happen! :)
Thanks a lot!

Just to make things clear, wouldn't it have to be Mg3(PO4)2, from balancing the charges? Because PO4 is -2 and Mg is +3, so it would need to be balanced.

oops. I wrote one wrong.
H3PO4 + Mg(OH)2 --> H2O + Mg3(PO4)2

Can someone help me with these two equations I need balanced?

H2SO4 + Ca(OH)2 --> H2O + CaS

H3PO4 + Mg(OH)2 --> H2O + MgP

We've been working on these, but they're harder than we thought!

The reactions wont occur, and there fore can not be balanced.

H2SO4 + Ca(OH)2 --> H2O + CaSO4

H3PO4 + Mg(OH)2 --> H2O + MgPO4

Nope: Mg is +2, PO4 is -3 It is however, the Mg3(PO4)2

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