Question

Give reason why? (a) Decomposition reaction is called the

opposite of combination reaction. (b) the respiration is considered an

exothermic reaction. (c) magnesium ribbon should be cleaned before

burning in air. (d) The colour of copper sulphate solution change when

iron nail is dipped in it.​

Answer 1

Answer:

combination reaction means combining of two or more substance & the opposite of this reaction means breakdown so that's why it is called decomposition reaction