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Topic 1 – Matter and Energy

3. Types of matter: Recognizing and interpreting diagram representations of matter

Answer questions 1 – 4 based on diagrams and information provided below.
KEY I II III IV

Atom A Atom B

1. Which diagrams contain only pure substances?

1) I and II only 2) II and III only 3) I, II , and III only 4) II, III, IV only

2. Which diagram represents element?

1) I only 2) II only 3) I and II only 4) II and IV only

3. Which diagram represents a compound?
1) II only 2) III only 3) II and III only 4) II and IV only

4. Which diagram is showing a mixture of substances?
1) I 2) II 3) III 4) IV

Given diagrams A, B, and C below: Answer questions 5 - 7 based on the diagrams.

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A B C

5. Which diagram or diagrams represent a compound of X and Y
1) A and B 2) A and C 3) A only 4) B only
6. Which diagrams represent chemical pure substances?
1) A and B 2) A and C 3) B and C 4) A, B and C

7. Which best describes diagram B?

1) It is a mixture that is composed of substances physically combined
2) It is a mixture that is composed of substances chemically combined
3) It is a compound that is composed of substances physically combined

4) It is a compound that is composed of substances chemically combined
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