Properties of Matter Practice ANSWERS– MYP Chemistry
1. Define matter.
Anything that takes up space and has mass.
Fill out the table
2. Blue Color
Physical Property
X
3. Density
X
4. Flammability
X
5. Solubility
X
Chemical Property
6. Reacts with acid to form H2
X
7. Supports combustion
X
8. Sour taste
X
9. Melting point
X
10. Reacts with water to form a gas
X
11. Hardness
X
12. Boiling point
X
13. Luster
X
14. Odor
X
16-24: Classify each of the following as an element, compound, heterogeneous mixture, or homogeneous mixture.
15. Gold
16. Sand and iron filings
17. Kool-aid completely dissolved in water
18. Baking Soda (sodium bicarbonate or NaHCO3)
19. Sulfur
Element
Heterogeneous
mixture
Homogeneous
Mixture
Compound
Element
20. Sodium chloride (NaCl)
Compound
21. Starbucks Frappuccino
Homogeneous
mixture
Compound
22. Water
23. Oxygen
Element
24. Using the data given, draw a graph of temperature vs. time for the heating of an unknown substance. Label the
axes.
Time (sec.)
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
Temperature (˚C)
20
25
30
35
35
35
35
40
45
50
50
50
50
55
60
A pure substance (either an element or a compound), is composed of only one type of matter. A pure substance therefore
would have a very distinct melting point and boiling point. These temperatures show up as a plateau region on the graph;
as heat energy is continually added, the temperature does not change until the phase change is complete. An impure
substance (a mixture), which is composed of many separate types of matter would have a very broad range of melting and
boiling points. This is because each component of the mixture retains its physical identity and properties. Since there are
many different melting and boiling points for each component of the mixture, there is not one, distinct temperature at
which the mixture melts or boils. Knowing this, does the graph you constructed illustrate the heating curve for a pure or
an impure substance? Explain
Pure Substance – There are distinct melting and boiling points which is the definition of a pure substance. If it was
an impure substance there would be a straight or curvy line indicating no distinct melting or boiling points.
23. Describe three ways to separate the individual components of a mixture (based on the physical properties of the
individual components).
Magnet – if there were magnetic substances
Picking – if there were large substances
Filtering – if there was a solution with a solid, the solid would get trapped
Boiling – separating a substance from water
Others are acceptable