Determine the oxidation states of elements in compounds with the formulas: Ca3P2, P2O5, H3PO4, Ca3 (PO4) 2, H4P2O7.

In this task you will need to determine the oxidation state of the elements in the following compounds.

Ca3P2 – called calcium phosphide. The oxidation state of calcium is +2, the oxidation state of phosphorus is -3.

P2O5 – called phosphorus oxide. The oxidation state of phosphorus is +5, the oxidation state of oxygen is -2.

H3PO4 – called phosphoric acid. The oxidation state of hydrogen is +1, the oxidation state of oxygen is -2, the oxidation state of phosphorus is +5.

Ca3 (PO4) 2 – called calcium phosphate. The oxidation state of calcium is +2, the oxidation state of oxygen is -2, the oxidation state of phosphorus is +5.

H4P2O7 – hydrogen oxidation state +1, oxygen oxidation state -2, phosphorus oxidation state +5.



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