Question

1) p2o5 + ? = k3po4 2) h3po4+ ? = k3po4

Answer 1

1. P₂O₅ + 3K₂O = 2K₃PO₄
2. 6K + 2H₃PO₄ = 2K₃PO₄ + 3H₂↑

Answer 2

1. The balanced chemical equation for the reaction between P2O5 and K3PO4 is:

P2O5 + 3K2CO3 → 2K3PO4 + 3CO2

Therefore, in order to balance this equation, we need to add 3K2CO3 on the left side of the equation to balance the potassium (K) and the carbon dioxide (CO2). So the balanced equation is:

P2O5 + 3K2CO3 → 2K3PO4 + 3CO2

2. The balanced chemical equation for the reaction between H3PO4 and K3PO4 is:

2H3PO4 + 3K2CO3 → 2K3PO4 + 3CO2 + 3H2O

Therefore, in order to balance this equation, we need to add 3K2CO3 and 3H2O on the left side of the equation to balance the potassium (K), the carbon dioxide (CO2), and the hydrogen (H). So the balanced equation is:

2H3PO4 + 3K2CO3 + 3H2O → 2K3PO4 + 3CO2 + 3H2O