Question

NaOH + H 3 PO 4 → 6) K2O + P2O5 →

Answer 1

Ответ:

3 NaOH  + H3PO4  → Na3PO4+ 3 H2O

3K2O + P2O5 → 2K3PO4

Answer 2

The chemical equation you provided is:

NaOH + H3PO4 → ?

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. Let's balance it step by step:

1. Balance the hydrogen (H) atoms: The H3PO4 molecule already contains 3 hydrogen atoms, so we need 3 H2O molecules on the product side to balance the hydrogen atoms. The equation now looks like this:

NaOH + H3PO4 → 3H2O + ?

2. Balance the oxygen (O) atoms: The NaOH molecule already contains 1 oxygen atom, while the H3PO4 molecule contains 4 oxygen atoms. To balance them, we need 3 O2 molecules on the product side. The equation now becomes:

NaOH + H3PO4 → 3H2O + 3O2 + ?

3. Balance the sodium (Na) and the phosphate (PO4) atoms: Since we have 1 Na atom in NaOH and 1 PO4 group in H3PO4, we need 1 Na3PO4 molecule on the product side. The final balanced equation is:

NaOH + H3PO4 → 3H2O + 3O2 + Na3PO4

Please note that this equation is balanced in terms of atoms. If you want the equation to represent a specific reaction, it's essential to consider the physical conditions (such as temperature, pressure, and concentration) under which the reaction takes place.