Question

What happen then potassium nitrate and copper2 nitrate is heated ?

Answer 1

28193, Chemistry, Inorganic Chemistry

What happen then potassium nitrate and copper2 nitrate is heated?

Answer:

When we heat $\mathrm{KNO}_3$ above $560^{\circ}\mathrm{C}$ it is decomposed into potassium nitrite, and oxygen by the following chemical equation:

$$2 \mathrm{KNO}_3 \rightarrow 2 \mathrm{KNO}_2 + \mathrm{O}_2$$

When we heat $\mathrm{Cu(NO_3)_2}$ above $180^{\circ}\mathrm{C}$ it is decomposed into copper oxide, oxygen and nitrogen(IV) oxide. The equation is the following:

$$2 \mathrm{Cu(NO_3)_2} \rightarrow 2 \mathrm{CuO} + \mathrm{O}_2 + \mathrm{NO}_2$$