These are the ions and their charges: Ca.2. PO. 4.3. The charges have to add up to zero, so three +2 Ca ions and two 3 P ions are added in order to cancel each other out: Ca.2. Ca.2
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The formula for Barium Phospate is Ba3(PO4)2. Barium is a soft,
http://www.chacha.com/question/whatistheformula...

The formula for Phosphate is PO43.
http://www.chacha.com/question/whatistheformula...

Cu 3 (PO4)2
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