Unit 1 Review

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

Which of the following is a chemical property of water?

• Reacts with pure sodium.
• Boils at 100 ^oC.
• Dissolves sugar easily. 
• Has a density of 1 gm/mL

Which of the following matches the correct definition to an example?

• Chemical Change: My foot changes color
• Physical Change: My microwave exploded
• Chemical Change: My dog ate my homework
• Physical Change: My homework burned in a fire

Define a Physical Property

• A property of matter that describes a substance

• A property in which stops a chemical reaction from occuring.
• A property or behavior of a substance which undergoes a chemical change or reaction.
• A property which makes the object smell or taste different.

Define a Chemical Property

• A property of matter not involving in its manifestation a chemical change
• A property in which stops a chemical reaction from occuring.
• A property or behavior of a substance which undergoes a chemical change or reaction.
• A property which makes the object smell or taste different.

Is ripping paper a chemical or physical change?

• Chemical
• Physical
• neither
• both

Is cooking an egg a 

• chemical change
• physical change
• neither
• both

Is a car getting rusty a 

• Chemical Change
• Physical Physical
• Both
• Neither

When gases condense and liquids freeze it is a

• physical property

• chemical property

• physical change

• chemical change

Which of the following is NOT an example of a physical change?

• crumpled paper
• pencil sharpening
• shrunken clothing
• sour milk