Help with equation
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jcevans7
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Help with equation


Can't solve this... Keep winding up with a negative which I know it means it isn't balanced. Here is the equation.

Solid calcium reacts with aqueous nitric acid to form aqueous calcium nitrate, gaseous dinitrogen monoxide and water.
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ChenBeier
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Ca => Ca2+ + 2 e- Oxidation

2 HNO3 to N2O Redox pair

2HNO3 + 8 H+ => N2O + 5 H2O Elimination of Oxygen to form water


2HNO3 + 8 H+ + 8 e-=> N2O + 5 H2O Charge balance

smallest common multiple of electrons is 8

means 4 Ca => 4 Ca2+ + 8 e-

Addition of both equations

2HNO3 + 8 H+ + 4 Ca => 4 Ca 2+ + N2O + 5 H2O

Addition of NO3-

10 HNO3 + 4 Ca => 4 Ca(NO3)2 +N2O + 5 H2O

finished
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jcevans7
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Man, that is awesome! I never got that far. This was by far the hardest equation I have seen. Thank you.
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