ELEMENTS AND COMPOUNDS

Question 1

________ are atoms that cannot be broken down into simpler substances.

Answer 1

Elements

Question 2

_______must be composed of 2 or more different elements.

Answer 2

Compounds

Question 3

______ the simplest part of a substance that retains its properties and can exist in a free state.

Answer 3

Molecule

Question 4

Compounds classified into two categories:

Answer 4

Organic and Inorganic compounds

Question 5

Mostly made of hydrogen and carbon

Answer 5

Organic compound

Question 6

_____ do not contain carbon atoms

Answer 6

Inorganic compounds