# Write down the equations of exchange reactions that go to the end in solution. A) zinc oxide + nitric acid

Write down the equations of exchange reactions that go to the end in solution. A) zinc oxide + nitric acid = B) iron (II) nitrate + sodium chloride = C) copper (II) sulfate + sodium phosphate =

a) Zinc oxide react with nitric acid. As a result of the reaction, zinc nitrate is formed and water is released. The chemical equation for the reaction is as follows:

ZnO + 2HNO₃ = Zn (NO₃) ₂ + H₂O;

The ionic reaction equation is as follows:

ZnO + 2H⁺ + 2NO₃⁻ = Zn²⁺ + 2NO₃⁻ + H₂O;

The abbreviated ionic equation looks like this:

ZnO + 2H⁺ = Zn²⁺ + H₂O.

b). Iron nitrate react with sodium chloride. The reaction cannot be carried out, this is due to the fact that as a result of the reaction no precipitate is formed.

Fe (NO₃) ₂ + NaCl3

c) Chemical reaction of copper sulfate and sodium phosphate. As a result of the reaction, copper phosphate is formed, which precipitates and the sodium sulfate salt. The chemical equation for the reaction is as follows:

3 CuSO₄ + 2 Na₃PO₄ = Cu₃ (PO₄) ₂ ↓ + 3 Na₂SO₄;

The ionic reaction equation is as follows:

3 Cu²⁺ + 3 SO₄²⁻ + 6 Na⁺ + 2 PO₄⁻ = Cu₃ (PO₄) ₂ + 6 Na⁺ + 3 SO₄²⁻;

The abbreviated ionic equation looks like this:

3 Cu²⁺ + 2 PO₄⁻ = Cu₃ (PO₄) ₂.

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