Chemistry Concepts Quiz

Which of the following is an example of a homogeneous mixture?

• Sand and iron filings

• Salt water

• Oil and water

• Chicken noodle soup

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DOK Level 2: Skill/Concept

What type of solution is formed when sugar is completely dissolved in water?

• Suspension

• Colloid

• True solution

• Emulsion

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DOK Level 2: Skill/Concept

Identify the heterogeneous mixture from the following:

• Vinegar

• Air

• Granite

• Brass

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Which of the following is a characteristic of a homogeneous mixture?

• The components are visibly distinguishable.

• The mixture has a uniform composition throughout.

• The components separate upon standing.

• It scatters light.

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DOK Level 2: Skill/Concept

What type of chemical reaction involves two or more substances combining to form a new compound?

• Decomposition

• Synthesis

• Single displacement

• Double displacement

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DOK Level 2: Skill/Concept

In a combustion reaction, what is always one of the reactants?

• Water

• Oxygen

• Carbon dioxide

• Hydrogen

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Which type of reaction is characterized by an exchange of ions between two compounds?

• Synthesis

• Decomposition

• Single displacement

• Double displacement

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DOK Level 2: Skill/Concept

What is the result of a decomposition reaction?

• Two or more products from one reactant

• One product from two or more reactants

• No reaction occurs

• Products are always elements

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DOK Level 2: Skill/Concept

Which of the following mixtures would likely be a colloid?

• Sugar in water

• Sand in water

• Milk

• Salt in water

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DOK Level 2: Skill/Concept