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balance chemical equation

1) Balance the equation below using the smallest set of whole numbers. What is the coefficient of H2O?
___PCl3(1)+ ___H2O(1) > ___H3PO3(aq)+ ___HCl(aq)

2)How many sodium atoms are there in 6.0g of Na3N

Solution Preview

1. There are 3 Cl in the product, so place 3 before HCl
PCl3 + H2O --> H3PO3 + 3HCl
To balance H and O, we need to place 3 before H2O
The balanced ...

Solution Summary

It shows how to balance chemical equation. It also calculate the number of sodium atoms in Na3N. The solution was rated '5/5' by the student who originally posted the questions.