Name
Properties of matter
1)
Which of the following are pure substances?
A) solutions
B) compounds
2)
Which of the following is NOT a pure substance?
A) milk
B) oxygen
C) water
D) carbon dioxide
Which of the following is a mixture?
A) carbon dioxide
B) silicon
D) sand
3)
C) homogeneous mixtures
C) silicon dioxide
4)
Which of the following is a heterogeneous mixture?
A) water in a swimming pool B) sugar water
5)
A mixture that appears to contain only one substance is a(n)
A) homogenous mixture
B) heterogeneous mixture
6)
D) Colloids
C) a jar of mixed nuts
D) stainless steel
C) compound
D) element
Fill in the chart below that demonstrates how matter can be classified.
Matter
Mixture
Elements
Heterogeneous
Solution
7)
What is the difference between elements and compounds?
8)
Identify each as either an element or compound.
a) Water
b) Oxygen
c) Ammonia
d) Sulfur
e) Carbon dioxide
f) Carbon monoxide
g) Sugar
h) Salt
i) Nickel
9)
What is the difference between a heterogeneous mixture and homogeneous mixture?
10) Classify the following as heterogeneous mixture, homogeneous mixture, compound, or element.
a) 10-karat gold
d) salad dressing
b) neon
e) salt
c) fog
f) salt water
g) soda pop
h) sand
i) steel
Study Guide
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11) Classify the following as physical (P) or chemical (C) properties of water.
A) density = 1.00 g/ml __ ________
D) is colorless___ _________
B) forms ice at 0 °C __ __________
E) is formed when wood is burned__ _____
C) makes hydrogen gas when combined with sodium metal ____ __________
12) A sample of copper can be drawn into a thin wire. Is this property of copper a physical or a chemical property?
13) Name one physical property and one chemical property of wood.
14) Suppose you need to identify the material in an object without changing the object in any way. Should you use
physical or chemical properties to identify the material? Explain your choice.
15) Suppose you mix two colorless liquids together and a green solid settles to the bottom of the container. Explain
why you might be confident that a chemical change has taken place.
16) During which of these events does a chemical change occur?
a) ice cubes melt
b) a pot of water boils
d) a paper clip is bent
e) a cake rises in the oven
c) a heated iron bar turns red
Use the drawing to answer questions 17 and 18.
17)
Which of the drawings could represent a homogeneous mixture?
a) drawing l
b) drawing ll
c) drawing lll
d) drawing l and lll
18) Which of the drawings could represent an element?
a) drawing l
b) drawing ll
c) drawing lll
d) drawing l and lll
e) drawing ll and lll
e) drawing ll and lll
19) When a physical change in a sample occurs, which of the following does NOT change?
a) shape
b) temperature
c) volume
d) composition
20) Which of the following is NOT a clue that a chemical change has occurred?
a) change in color
b) production of a gas c) formation of a precipitate
d) changes in shape
21) Which of the following is a clue of a chemical change?
a) ice melting b) ice being carved c) water boiling d) water breaking down into hydrogen and helium
22) identify each of the following changes as chemical or physical
a) Freezing of water
b) Burning wood
c) Rusting of a nail
d) Dissolving salt in water
g) Frying an egg
e) Putting paint on wood
h) Baking a cake
j) Tearing a piece of paper
m) Making a volcano with baking soda
and vinegar
p) Bleaching your hair
k) Healing of a wound
n) Smashing a watermelon
f) Melting butter for popcorn
i) Hammering wood together to build
a playhouse
l) Digesting an apple
o) Waxing a wooden floor
Q) Burning toast
r) Fireworks exploding
Study Guide
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