Chemistry
Give reasons:
A piece of chalk can be broken easily into smaller pieces but a coal piece cannot be broken easily.
Matter
21 Likes
Answer
The magnitude of intermolecular force of attraction between the molecules of coal is much higher than that between the molecules of chalk. Hence, a piece of chalk can be broken easily into smaller pieces while a coal piece cannot be broken easily.
Answered By
11 Likes
Related Questions
Give reasons:
When magnesium is burnt in air, there is an increase in mass after the reaction.
Give reasons:
When sodium chloride is added to a definite volume of water and stirred well, a solution is formed, but there is no increase in the level of water.
State your observation when :
(a) A gas jar which appears empty is inverted over a gas jar containing Bromine vapours.
(b) Solid ammonium chloride is heated.
(c) Vinegar is added to baking soda.
Give word equations for the following reactions:
(a) Barium chloride solution is added to sodium sulphate solution.
(b) Vinegar is added to baking soda.
(c) Magnesium burns in oxygen.