REVIEWER II - MATTER

YOUR COMPLETE NAME (LAST NAME , FIRST NAME )

The situations are examples of changes in matter I. Fireworks creating an explosion II. Freezing water to create ice III. Wood burning to create ash IV. Hot water creating steam V. Cookie dough creating cookies Which of the following are examples of chemical change?

• I , II
• I, II, & III
• I, III & V
• All of the above

What is an example of a chemical change of matter?

• A. Coloring on paper
• B. Cutting paper
• C. Burning paper
• D. Tearing paper

Which of these conditions would signify a chemical change has occurred when combining elements? I. Emission of light II. Change in mass III. Emission of heat IV. Change in volume V. Formation of a precipitate VI. Formation of gas bubbles

• A. I, II III
• B.I, III, V
• C. I, III, VI
• D. I, IV, V

In Rutherford’s gold foil experiment, he concluded that the atom is mostly made-up of —

• A. nucleus
• B. empty space
• C. electrons
• D. neutrons

What is an example of a chemical change?

• A. Freezing water
• B. Burning a wooden splint
• C. Boiling a liquid
• D. Evaporating gasoline

For a student to be able to identify that a chemical change has occurred, which of the following could be observed?

• A. Change of color, production of odor, production of gas, production of light
• B. Change of color, did not produce a new substance, change shape of matter
• C. Change of color, change in size, no indication of energy input or output
• D. No change of color, no production of odor, no production of gas

A student conducted an activity with the given experimental set up. He observed that when baking powder is mixed with vinegar, carbon dioxide gas is released in test tube A and the lime water in test tube B turns milky. Which explains the type of changes that occurred in the test tubes?

• A. Test tube A – physical change, as temperature did not change Test tube B – physical change, as the color of lime water changed
• B. Test tube A – physical change, as bubbles were formed Test tube B – chemical change, as a new substance was formed
• C. Test tube A – chemical change, as a gas was formed Test tube B – physical change, as the color of lime water changed
• D. Test tube A – chemical change, as a gas was formed Test tube B – chemical change, as a new substance was formed

A change in matter that produces a new substance is —

• A. a physical change
• B. a chemical property
• C. a chemical change
• D. a physical property

When matter undergoes a change in form, but the chemical make up is NOT changed, it is a —

• A. chemical change
• B. physical change
• C. chemical reaction
• D. nuclear reaction