Responses
A It can be separated using by a physical means, such as filtering.It can be separated using by a physical means, such as filtering.
B The components in a pure substance do not have to be in definite ratios.The components in a pure substance do not have to be in definite ratios.
C If the composition of a sample varies, the sample is a pure substance.If the composition of a sample varies, the sample is a pure substance.
D If the composition of a sample is fixed, the sample is a pure substance.
1 answer
The correct response is:
D If the composition of a sample is fixed, the sample is a pure substance.
A pure substance has a consistent and uniform composition throughout, meaning that its chemical properties are the same no matter how much of the substance you have.
