What is one characteristic of a sample of matter that indicates it is a pure substance?

a)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. c)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

D

Explanation:

If the composition of a sample is fixed, the sample is a pure substance. According to the law of definite proportions (constant composition), components of a pure substance must be in definite ratios regardless of the source.

personal, she chose to do it.

honesty and integrity.

inspire others.

commitment and passion.

good communicator.

decision-making capabilities.

accountability.

delegation and empowerment.

creativity and innovation.

here are the traits of a good leader.i'm not going to give you the examples so you can copy right it.that's illegal but i hope that this you out.