Question

HELP PLEASE ASAP! Scientists Pam and Alejandro were discussing a liquid found in the science lab that was missing it's label. In classifying the unknown liquid, they first needed to determine if the liquid is a mixture or pure substance. How is a pure substance different from a mixture?

Question 13 options:

A pure substance is heterogeneous.


Mixtures cannot be separated by physical means.


Pure substances cannot be separated by physical means.


A mixture is made of one substance.




Which of the following is true of pure substances and mixtures? (Check all that apply.)

Question 10 options:

A pure substance is heterogeneous.


Pure substances are separated by physical means.


Mixtures are made up of more than one component.


Mixtures can be separated by physical means.


A mixture is made of one substance.


Pure substances are made up of mixtures.

Answer 1

Sorry that I didn't answer this asap, but I still hope this may be helpful to you or someone else.

Question 1:

Pure substances cannot be separated by physical means.

Question 2:

Mixtures are made up of more than one component.

Mixtures can be separated by physical means.

Hope this helps!

Answer 2

Answer:

a

Explanation: