_Na + _H3PO4 ->

Question

predict the product and balance the equation and name the type of reaction

 

Answer 1

If you are dealing with net ionic equations, you would write:

   6 Na_(s)  +    2 H₃PO_4(aq)  -->   3H_2(g)  +  6 Na⁺  +  2 PO₄^3-   

Answer 2

6Na + 2H₃PO₄ = 2Na₃PO₄ + 3H₂

Answer 3

To start things off, you should recognize what type of reaction is taking place. In this case, it's a single replacement reaction. This means that sodium atoms are replacing the hydrogen atoms. A phosphate ion has an ionic charge of -3 while a sodium ion has a charge of +1. Therefore there will be three sodium ions per phosphate ion.

So now we can predict the products of the reaction: Na + H₃PO₄ -> Na₃PO₄ + H₂

However, the reactants and products still need to be balanced so there is no loss or gain of atoms throughout the reaction.

After balancing, the answer should be: 6 Na + 2 H₃PO₄ -> 2 Na₃PO₄ + 3 H₂

 

Answer 4

For high school chemistry, you would simply call this a "single displacement" or "single replacement" reaction; they mean the same thing.

Answer 5

6Na+2H3PO4 ---2Na3PO4 +H2