Question

Give examples,equations of the following 1.Electrolysis 2. photodecomposition 3. Thermal decomposition Reaction(s)

Answer 1

Thermal - CaCo3—>CaO+Co2
Electric - h2O—->h2 + O2
Photo - AgCl—->Ag+ Cl2

Answer 2

1) Electrolysis :
Water decomposition into hydrogen and oxygen
2)photodecomposition :
Silver bromide when kept in sunlight it decomposes into silver Ag and bromine br
3)For example, copper is near the bottom of the reactivity series, and copper sulfate (CuSO4), begins to decompose at about 200 °C, increasing rapidly at higher temperatures to about 560 °C. In contrast potassium is near the top of the reactivity series, and potassium sulfate (K2SO4) does not decompose at its melting point of about 1069 °C, nor even at its boiling point.