1st Sems Review B

Which of the following is a physical property of a substance?

• Reactivity with acids

• Flammability

• Color

• Oxidation

What is the definition of a chemical property?

• Characteristics that can be observed without changing the substance's identity

• Characteristics that can only be observed when a substance undergoes a chemical change

• A change in the form of a substance without a change in its chemical composition

• The ability to dissolve in another substance

Which of the following is an example of a chemical property?

• Density

• Malleability

• pH

• Solubility

What does malleability refer to in terms of physical properties?

• Ability to burn

• Ability to be hammered into thin sheets

• Ability to dissolve in another substance

• Ability to catch fire

Which of the following describes a physical change?

• Rusting of iron

• Burning of wood

• Melting of ice

• Reactivity with oxygen

What is a key characteristic of a physical change?

• New substance is formed.

• The change is irreversible.

• No new substance is formed.

• Gas production occurs.

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

• Rusting of iron

• Melting ice

• Burning wood

• Baking a cake

What is a chemical change?

• A change that is reversible

• A change that involves cutting or crushing

• A change that results in new substances with new properties

• A change that involves dissolving

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a clue to a chemical change?

• Dissolving sugar in water

• Cutting paper

• Temperature change without an external heat source

• Boiling water

Tags

NGSS.MS-PS1-2

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

• Crushing a can

• Boiling water

• Baking a cake

• Dissolving sugar in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5