Which of the following is a characteristic property of solids?

• They have a definite shape and volume.

• They can be easily compressed.

• They flow to take the shape of their container.

• They expand to fill their container.

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DOK Level 2: Skill/Concept

What is the primary difference between a mixture and a solution?

• Mixtures are always homogeneous, while solutions are always heterogeneous.

• Mixtures can be separated by physical means, while solutions cannot.

• Solutions are a type of mixture where one substance is dissolved in another.

• Mixtures involve chemical bonding, while solutions do not.

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DOK Level 2: Skill/Concept

Which phase change involves a substance going from a gas to a liquid?

• Sublimation

• Condensation

• Evaporation

• Freezing

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DOK Level 2: Skill/Concept

Which of the following best describes a metallic bond?

• A bond formed by the sharing of electron pairs between atoms.

• A bond formed by the transfer of electrons from one atom to another.

• A bond formed by the attraction between free-floating valence electrons and positively charged metal ions.

• A bond formed by the overlap of atomic orbitals.

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DOK Level 2: Skill/Concept

What property of liquids allows them to take the shape of their container?

• High compressibility

• Fixed volume

• Fluidity

• Rigidity

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DOK Level 2: Skill/Concept

Which of the following statements is true about gases?

• Gases have a definite shape and volume.

• Gases are incompressible.

• Gases expand to fill their container.

• Gases have a fixed volume but no fixed shape.

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DOK Level 2: Skill/Concept

Which type of bond is formed when electrons are transferred from one atom to another?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

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DOK Level 2: Skill/Concept

What is the process called when a solid changes directly into a gas?

• Melting

• Freezing

• Sublimation

• Deposition

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DOK Level 2: Skill/Concept

Which of the following is a property of covalent bonds?

• They involve the transfer of electrons.

• They are typically formed between metals and nonmetals.

• They involve the sharing of electron pairs between atoms.

• They are formed by the attraction between ions.

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DOK Level 2: Skill/Concept

Which of the following is an example of a phase change?

• Dissolving sugar in water

• Melting ice

• Mixing sand and salt

• Grinding coffee beans

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DOK Level 2: Skill/Concept