Question

what is being shown on the screen now? (choose 3 that are true.) two different elements two different types of molecules a compound two different pure substances

Explanation:

Elements are pure substances made of one - type of atom. Molecules can be of different types. Compounds are substances made of different elements chemically combined. Pure substances can be elements or compounds. Based on general chemistry knowledge about substances and their classifications.

Answer:

two different elements, two different types of molecules, two different pure substances