Question

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? (4 points)

a It was a pure substance.
b It was a compound.
c It was a heterogeneous mixture.
d It was a homogeneous mixture

Answer 1

b It was a compound.

Step-by-step explanation:

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. NO. If the pure substance is a compound, this option could be. However, if the pure substance is a simple substance, it could not be separated into its components.

b It was a compound. YES. Compounds can be separated into pure substances using chemical reactions. For instance, H₂O → H₂ + 1/2 O₂

c It was a heterogeneous mixture. NO. Heterogeneous mixtures can be separated into homogeneous mixtures using physical processes such as sieving, filtration, etc.

d It was a homogeneous mixture. NO. Homogeneous mixtures can be separated into pure substances using physical processes such as distillation, chromatography, etc.