10. Which of the following set of properties talks about a compound?
I. Made up of one or more atoms
II.Joined through chemical process
III. Composed of one or more substance
IV. Mixtures of one or more different
substances
A. I and II only
B. II and III only
C. III and IV only
D. I, II, III, IV
Answers & Comments
Answer:
C
Explanation:
A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element.