Upon heating copper II nitrate, the decomposition reaction is as follows:
2 Cu(NO3)2(s) --> 4 NO2(g) + O2(g) + 2 CuO(s)
First the NO2 gas is released, as it is the larger molecule, then O2 gas, leaving CuO solid remaining.
2Cu(NO3)2(s)+heat------->2CuO(s)+4NO2(g)+O2(g)
When you heat copper hydroxide and sodium nitrate, a chemical reaction occurs where the copper hydroxide decomposes to form copper oxide and water, while the sodium nitrate decomposes to form sodium nitrite, oxygen gas, and nitrogen dioxide gas.
The heat for this reaction is called the heat of solution for ammonium nitrate. When the reaction is finished, the system contains two substances, the calorimeter itself and the aqueous solution, and there is a heat associated with each component.
2KNO3 (s) ==heat==> 2KNO2(s) + O2(g) potassium nitrate decomposes to potassium nitrite and oxygen. NB Note the spelling for the product.
CuCO3 ==> CO2 + CuO (heat is the catalyst, written above the arrow)
2Cu(NO3)2(s)+heat------->2CuO(s)+4NO2(g)+O2(g)
Copper nitrate dissolves in water, hence it is a chemical reaction.
copper oxide, nitrogen and oxygen
When you heat copper hydroxide and sodium nitrate, a chemical reaction occurs where the copper hydroxide decomposes to form copper oxide and water, while the sodium nitrate decomposes to form sodium nitrite, oxygen gas, and nitrogen dioxide gas.
The balanced equation is Cu(OH)2 (s) (heat) = CuO + H2O.
Heat the liquid to boil off excess water and the copper nitrate will crystalise out of the solution as it cools. Then filter to separate the crystals from the liquid.
It is important to note that with any type of mixture involving acid one should be extremely careful. When you mix copper with nitric acid you will get either nitrogen dioxide or nitric oxide.
To extract copper from copper nitrate, you can heat the copper nitrate in a crucible to decompose it into copper oxide, releasing nitrogen dioxide gas. Then, reduce the copper oxide to copper metal by heating it with carbon in a reducing atmosphere, such as hydrogen or carbon monoxide. The copper metal will be left behind as a residue in the crucible, which can then be collected and purified.
The heat for this reaction is called the heat of solution for ammonium nitrate. When the reaction is finished, the system contains two substances, the calorimeter itself and the aqueous solution, and there is a heat associated with each component.
Kn2 heat equal kn2+o2
The brown gas released while heating copper II nitrate is nitrogen dioxide (NO2). This gas is formed when the nitrate ion decomposes under heat to release oxygen gas and nitrogen dioxide.
If you are asking why DOES copper bend on heating, then i can answer that. When heat is applied, the copper molecules are spread farther apart, making the molecular structure weaker, thus you may bend it.