Question

select all that apply
a mixtures can be separated using physical properties
b they are all mixed uniformly and have an even composition throughout
c the components keep their physical properties
d substances must combine in specific proportions
you got 1 out of 2 correct
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Explanation:

• Option a: Mixtures can be separated using physical methods (e.g., filtration, distillation) based on physical properties (e.g., particle size, boiling point).
• Option b: Only homogeneous mixtures are mixed uniformly. Heterogeneous mixtures have uneven composition.
• Option c: In a mixture, components retain their physical properties (e.g., salt - water: salt is still salty, water is still liquid at room temperature).
• Option d: Substances in mixtures can combine in any proportion. Fixed proportions are for compounds.

Answer:

A. mixtures can be separated using physical properties, C. the components keep their physical properties