Question

Pls help with these question because I don't understand what are pure substance and how to tell ​

Answer 1

option A is your answer.

Step-by-step explanation:

Reason being is because that for the diagram if all of the little dots are connected another single dot then it is a pure but if one little dot isn't connected to another one then it isn't a pure substance.

Hope this helps!!!

Answer 2

i am pretty sure its A

Step-by-step explanation:

they are etheir together like black and white or some sort of pattern if notice.

If they are like B,C,D like that they are mixtures which are NOT PURE SUBSTANCE'S.