The products of the following reactions are all simple substances: a electrolysis water B decomposition hydrogen peroxide solution c heating potassium permanganate D iron wire burning in oxygen The products of the following reactions are all simple A electrolyzing water B decomposing hydrogen peroxide solution c heating potassium permanganate D iron wire burning in oxygen Why is a right and the other options wrong? Explain the ABCD option

The products of the following reactions are all simple substances: a electrolysis water B decomposition hydrogen peroxide solution c heating potassium permanganate D iron wire burning in oxygen The products of the following reactions are all simple A electrolyzing water B decomposing hydrogen peroxide solution c heating potassium permanganate D iron wire burning in oxygen Why is a right and the other options wrong? Explain the ABCD option

For a, 2H2O = 2h2 + O2, both hydrogen and oxygen are elemental;
B wrong, 2h2o2 = 2H2O + O2, the generated water is not a simple substance;
C wrong, 2kmno4 = k2mno4 + MnO2 + O2, the formation of k2mno4 and MnO2 is not simple substance;
D fault, 3Fe + 2O2 = Fe 3O 4, the formation of Fe 3O 4 is not simple

Heating mercuric oxide heating potassium permanganate heating mixture of potassium chloride and manganese dioxide hydrogen peroxide and manganese dioxide mixed electrolytic water

2hgo = 2hg + O2 (heating symbol on equal sign)
2kmno4 = k2mno4 + MnO2 + O2 (the heating symbol is written on the equal sign)
2kclo3 = 2KCL + 3O2 (equal sign with heating symbol below and MnO2 above)
2h2o2 = 2H2O + O2 (MnO2 on equal sign)
2H2O = 2h2 + O2
The above equations H2 and O2 should be marked with gas symbols

Iron wire burning, electrolyzing water, heating potassium permanganate, decomposing peroxide, is hydrogen solution a simple substance

Iron wire burns in pure oxygen to produce iron oxide, which is called a magnet
Electrolysis of water produces hydrogen and oxygen
Heating potassium permanganate to produce potassium permanganate, manganese chloride and oxygen
If you decompose hydrogen peroxide (hydrogen peroxide) solution here, it means that manganese dioxide is added to decompose to produce oxygen and water