CAIE IGCSE Chemistry 6.1.1 Physical and Chemical Changes and Questions
Classify changes by whether a new substance forms, using reversibility, equations, colour, gas and product evidence.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- identify physical changes such as melting, boiling and dissolving
- identify chemical changes from new substances or products
- use equations and observations to distinguish physical and chemical changes
- classify changes using reversibility, colour, gas or product evidence
CAIE IGCSE Chemistry 6.1.1 Physical and Chemical Changes and Questions question 1
[Maximum number: 1]
When calcium carbonate is heated strongly, a gas is given off.
Which word describes this change?
A
chemical
B
exothermic
C
physical
D
reduction
A
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