
Concept explainers
(a)
Interpretation:
Hot tea has to be classified as a pure substance or a mixture.
Concept Introduction:
Matter can be classified into two type’s namely pure substance and mixture.
Pure substance: A single component that has a constant composition, irrespective of the
Example: Water, sugar etc.
Mixture: A mixture consists of more than one substance and the composition of a mixture is dependent on the sample. The separation of mixture into its components can be done by physical changes.
(b)
Interpretation:
Beach sand has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Carbon dioxide has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Cement has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(e)
Interpretation:
Zinc has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(f)
Interpretation:
Vinegar has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).

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Chapter 3 Solutions
EBK FOUNDATIONS OF COLLEGE CHEMISTRY
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