EASY
Earn 100

Write the chemical equation for burning of coal.

Important Questions on Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.

HARD

The reaction of water with CaO has been shown in the given diagram. 

Question Image

(a) Write the names of 1 and 2

(b) Write the name of the reaction taking place.

(c) Write the balanced equation for the reaction taking place.