Question

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.
11. Which of the following is substance B?
A. Compound
B. Element
C. Mixtures
D. Pure Substance
12. Which of the following is substance A?
A. Acid
B. Element
C. Compound
D. Mixture
13. Which of the following could be an example of Substance B?
A. Calcium Oxide
B. Ice
C. Iron Oxide
D. Water​

Answer 1

Answer:

11 pure substance 12 Acid 13 calcium oxide