Unit 2: Properties of Matter Review

What is the chemical symbol for the element Oxygen?

• O

• Ox

• Oy

• Om

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DOK Level 1: Recall

a substance containing atoms of two or more different elements connected together.?

• Chemical Formula

• Chemical Symbol

• Compound

• Periodic Table

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DOK Level 1: Recall

• 1

• 2

• 3

• 4

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DOK Level 1: Recall

Which of the following is a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Baking a cake

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DOK Level 1: Recall

What happens to the solute concentration when more solute is added to a solution?

• It decreases

• It remains the same

• It increases

• It becomes zero

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DOK Level 1: Recall

• Both have the same number of atoms

• Cannot be determined

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DOK Level 2: Skill/Concept

Which of the following best describes a chemical change?

• A change in state

• A change in color

• Formation of a new substance

• Dissolving sugar in water

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DOK Level 2: Skill/Concept

How does increasing the surface area of a solute affect its rate of dissolution in water?

• It decreases the rate

• It has no effect

• It increases the rate

• It stops the dissolution

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DOK Level 2: Skill/Concept

How does increasing the temperature of a solvent affect its rate of dissolution in water?

• It decreases the rate

• It has no effect

• It increases the rate

• It stops the dissolution

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DOK Level 2: Skill/Concept

Explain why salt dissolves faster in hot water than in cold water.

• Hot water has more solute

• Increase in water temperature helps molecules move faster.

• Cold water has less solute

• decrease in water temperature helps Cold water molecules move faster

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DOK Level 2: Skill/Concept