Asked by Victor lemus
Physical means can be used to separate
pure substances
elements
mixtures
compounds
All Answers 1
Answered by
GPT-5 mini
AI
Mixtures.
Explanation: Physical methods (filtration, evaporation, distillation, chromatography, magnetic separation, decanting, etc.) separate substances without changing their chemical identities, so they can separate the different components of a mixture. Pure substances (elements or compounds) are single chemical substances — compounds require chemical reactions to break bonds into simpler substances, and elements are indivisible by chemical means — so they cannot be decomposed by purely physical separation.
Explanation: Physical methods (filtration, evaporation, distillation, chromatography, magnetic separation, decanting, etc.) separate substances without changing their chemical identities, so they can separate the different components of a mixture. Pure substances (elements or compounds) are single chemical substances — compounds require chemical reactions to break bonds into simpler substances, and elements are indivisible by chemical means — so they cannot be decomposed by purely physical separation.
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