Question

Write three chemical equations on light heat and electricity

Answer 1

Decomposition by heat or thermal energy

caco3--->heat- cao+ co2

(b) Decomposition by light or photolysis

2AgCl —> 2Ag + Cl2 (in presence of light)

(c) Decomposition by electricity or electrolysis

2h20--->electricity ---2h2 + O2

Answer 2

Three chemical equations on light heat and electricity can be shown in form of decomposition reaction using light ,heat and electricity

DECOMPOSITION REACTION USISNG LIGHT:

2Agcl---->2Ag + Cl2

DECOMPOSITION REACTION USING HEAT:

CaCo3---->CaO + CO2

DECOMPOSITION REACTION USING ELECTRICITY:

2H2O---->2H2 + O2

Have a look at the picture below: