Subject Experts Solutions for Chapter: Physical and Chemical Changes, Exercise 2: CHECKPOINT
Subject Experts Chemistry Solutions for Exercise - Subject Experts Solutions for Chapter: Physical and Chemical Changes, Exercise 2: CHECKPOINT
Attempt the free practice questions on Chapter 2: Physical and Chemical Changes, Exercise 2: CHECKPOINT with hints and solutions to strengthen your understanding. Inspired Chemistry-7 solutions are prepared by Experienced Embibe Experts.
Questions from Subject Experts Solutions for Chapter: Physical and Chemical Changes, Exercise 2: CHECKPOINT with Hints & Solutions
List an example of a fast chemical change, a chemical change accompanied by a change in colour and a chemical change accompanied by the release of heat.
Why is the reaction of quicklime with water classified as a chemical change?
Describe three periodic changes you observe in nature.
List the characteristics of a physical change.
Outline an experiment to show that the dissolution of a substance in water is a physical change and not a chemical change.
List the characteristics of a chemical change.
Differentiate between what happens when you heat iodine crystals and strongly heat a mixture of iron and sulphur powder.
Describe the kinds of energy changes that accompany physical and chemical changes with an example each.
