Question

Which type of change takes place in the following and state whether the energy

is evolved or absorbed during the change?

Burning of a candle, lightning of a bulb, preparation of food by green plants,volcanic,eruption,

evaporation of petrol, burning of LPG.​

Answer 1

Answer:

Burning of a candle Chemical change as well as physical change and energy evolved.

Lightning of a bulb Physical change, energy evolved.

Preparation of food by green plants Chemical change, energy absorbed.

Volcanic eruption Chemical change, energy evolved.

Evaporation of petrol Physical change as no new chemical substance is formed, energy absorbed.

Burning of LPG Chemical change because LPG o

on burning form CO2 and H2O,energy absorbed.

hope it works

Answer 2

Answer:

ya upper one is right

ya ya ya ya ya ya ya ya