RETAKE Quiz - Pure Substances vs. Mixtures

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1. Which of these substances is a compound?

• A. Carbon (C)
• B. Baking Soda (NaHCO3)
• C. Gold (Au)
• D. Chlorine (Cl)

2. Which of these common substances is a homogeneous mixture?

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3. What type of pure substance is always made up of a single type of atom?

• A. Mixture
• B. Element
• C. Molecule
• D. Compound

4. Which of these is NOT a pure substance?

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5. Which of the following statements is correct about the images below. Choose 2

• Boxes E, F and H are elements
• Boxes B, D and G are compounds
• Box C is a mixture
• Boxes A and C are both elements
• Boxes A, B, and D are pure substances

6. Which of the following are pure substances? Choose 2

• A
• G
• B
• C
• D

7. Both __________ and __________ can be classified as pure substances.

• A. elements, compounds
• B. formulas, structure
• C. atoms, molecules
• D. mixtures and solutions

8. What is the chemical symbol for the metal Tungsten?

• A. T
• B. W
• C. Tu
• D. Wu

10. Which element has the chemical symbol Si?

• A. Sulpher
• B. Silver
• C. Scandium
• D. Silicon