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Which of the following can only be separated into two or more pure substances by a chemical change? a. an element b. a compound c. a homogeneous mixture d. a heterogeneous mixture
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Which of the following can only be separated into two or more pure substances by a chemical change?

a. an element
b. a compound
c. a homogeneous mixture
d. a heterogeneous mixture

User Martin Brabec
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The best answer to the question that is being presented above would be letter b. A compound can only be separated into two or more pure substances by a chemical change. Mixtures can be separated without chemical change. 
User Dpfauwadel
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