3. What substance is composed of only one kind of atom?
A Element
B. Compound
C. Pure substance
D. Mixture
9. When one or more substance is combined it is called
A Element
B. Compound
C. Pure substance
D. Mixture
10. Which of the following set of properties talks about a compound?
I. Made up of one or more atoms
Joined through chemical process
Composed of one or more substance
IV. Vixtures of one or more different
substances
AI and II only
B. II and III only
C. III and IV only
D. I, II, III, IV​