Question

ecm task cards
started: oct 10 at 10:11am
quiz instructions
question 12
1.66 pts
concrete
element compound mixture
element
compound
mixture

Explanation:

Elements are pure substances made of one - type of atom. Compounds are pure substances made of two or more different types of atoms chemically combined. Mixtures are made of two or more substances physically combined and can be separated by physical means. Concrete is made of cement, sand, gravel, and water which are physically combined and can be separated by physical processes like sieving or evaporation.

Answer:

Mixture