For items 9-10, refer to the problem below.
Substance A and Substance B were examined. The results
showed that Substance A is made up of a single atom and
cannot be broken down into simple form while Substance B
is made up of two or more atoms of different kinds and can
be broken down into its components.
9. Which of the following is substance B?
A. Compound
C. Mixtures
B. Element
D. Pure Substance
10. Which of the following is substance A?
A. Acid
C. Compound
B. Element
D. Mixture​