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2 October, 11:16

A chemical reaction was used to separate a sample into its components. What conclusion about the sample can be formed based on the technique used?

A: It was a pure substance

B: It was a compound

C: It was a heterogeneous mixture

D: It was a homogeneous mixture

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Answers (2)
  1. 2 October, 11:27
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    C, a compound because it means it was made up of more than one element but, still able to be separated from the other compound (s)
  2. 2 October, 11:39
    0
    B: It was a compound

    Explanation:

    If a chemical reaction was used to separate a sample into its components, then it was a compound. For example, water (H2O, a compound) can be separated by electrolysis into oxygen and hydrogen (its components). the chemical reaction is:

    2 H2O - > O2 + 2 H2

    Heterogeneous and homogeneous mixtures can be separated by physical ways. Pure substance can be either a compound or an element, so this option is not specific enough to be the correct answer.
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