1. Ch 2 matter and Change

2. Classify the change
lighting a match
A)CHEMICAL
B) PHYSICAL

3. Please make your selection
Which subatomic particle plays the greatest part in determining the properties of an element?
A electron
B proton
C neutron
D nucleus

4. Please make your selection
A good definition of a chemical is any substance that
a. causes corrosion.
b. has a definite composition.
c. is hazardous.
d. is used in industrial processes.

5. Please make your selection
The smallest particle of an element that retains the properties of that element is a(n) ____.
A proton
B atom
C electron
D neutron

6. Please make your selection
When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
A neither a physical change nor a chemical change
B a physical change
C both a physical change and a chemical change
D a chemical change

7. Please make your selection
Which state of matter takes both the shape and volume of its container?
A solid
B liquid only
C gas only
D both b and c

8. Please make your selection
The state of matter in which a material is most likely to resist
compression is the
a. solid state.
b. liquid state.
c. gaseous state.
d. vaporous state.

9. Please make your selection
Which state of matter has a definite volume and takes the shape of its container?
A solid
B liquid only
C gas only
D both b and c

10. Please make your selection
One chemical property of matter is
a. boiling point.
b. texture.
c. reactivity.
d. density.

11. Classify the change
water evaporating
A)CHEMICAL
B) PHYSICAL

12. Please make your selection
Mercury(II) oxide decomposes into mercury and oxygen. In this
reaction, mercury is
a. a reactant.
b. a product.
c. a foul-smelling substance.
d. sometimes a reactant and sometimes a product.

13. Classify the change
chopping wood
A)CHEMICAL
B) PHYSICAL

14. Please make your selection
Which field of science studies the composition and structure of matter?
A biology
B geology
C chemistry
D physics

15. Please make your selection
What type of matter is formed when two or more elements chemically
join together?
a. compound
b. element
c. heterogeneous mixture
d. homogeneous mixture

16. Please make your selection
Which of the following is a chemical property?
A ability to react with oxygen
B color
C freezing point
D hardness

17. Please make your selection
A chemical change occurs when
a. dissolved minerals solidify to form a crystal.
b. ethanol is purified through distillation.
c. salt deposits form from evaporated seawater.
d. a leaf changes color.

18. Please make your selection
Matter that is free to move and fills its available volume is in the ______
state.
a. liquid
b. solid
c. gaseous
d. elemental

19. Please make your selection
Which of the following observations does not indicate that a chemical
change has occurred?
a. change of state
b. formation of a precipitate
c. absorption of energy
d. release of a gas

20. Please make your selection
Which of the following shows a physical change occurring?
a. A peach spoils.
b. A copper bowl tarnishes.
c. A piece of jewelry turns your skin green.
d. A hot-glue gun melts a glue stick.

21. Classify the change
ice melting
A)CHEMICAL
B) PHYSICAL