Phys. & Chem. Properties and Changes

What is the primary focus of chemistry?

• Studying historical events

• Studying celestial bodies

• Studying living organisms

• Studying matter and its properties

Which of the following is an example of an extensive property?

• Mass

• Density

• Smell

• Color

What type of property is described by the color of a substance?

• Reactive

• Chemical

• Extensive

• Intensive

What is an example of an intensive property?

• Density

• Mass

• Length

• Volume

Which property can be observed without changing the substance itself?

• Intensive property

• Physical property

• Chemical property

• Reactive property

What must occur to test a chemical property?

• Observe the color

• Smell the substance

• Change the substance

• Measure the mass

Which of the following is a physical change?

• Cooking an egg

• Melting ice

• Burning paper

• Rusting iron

What happens to the identity of matter during a physical change?

• It becomes a new substance

• It changes completely

• It disappears

• It remains the same

What indicates a chemical change has occurred?

• Change in size

• Change in shape

• Change in temperature

• Production of light

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

• Melting wax

• Freezing water

• Boiling water

• Burning wood