UNIVERSITY OF MINDANAO ILANG HIGH SCHOOL
Ilang, Davao City
STEM 3 – GENERAL CHEMISTRY 1
First Monthly Examination – Second Semester
Name:_________________________
Grade/Section:___________________
Date:________________
Score: __________________
1. Which term refers to a charged particle or a set of charged particles?
A. ion
C. molecule
B. atom
D. debris
2. Which pairs of Greek philosophers and their views on matter are incorrect?
1 - Anaximenes : Matter is made up of air.
2 - Thales : Matter is made up of fire.
3 - Heraclitus : Matter is made up of water.
4 - Empedocles : Matter is made up of four elements.
A. 3 and 4
C. 2 and 3
B. 1 and 4
D. 1 and 2
3. Who proposed that matter is made up of tiny indivisible particles?
A. Empedocles
C. Democritus
B. Heraclitus
D. Aristotle
4. Which statement(s) adheres to the principles of the particulate nature of matter?
1 - Particles of matter are in constant and random motion.
2 - Particles of matter are steady and in fixed positions.
3 - Particles of matter are held or repelled by forces.
A. 2 only
C. 1 and 3
B. 1 only
D. 2 and 3
5. Which of the following situations best shows that particles are in constant motion?
A. The smell of cologne diffuses in air.
B. The block of wood retains its shape.
C. The water droplet sticks on the glass window.
D. The air inside the balloon is highly compressible.
6. Which statements describe the particulate nature of solids?
1 - Solid particles are far apart from one another.
2 - Solid particles are held by a weak force.
3 - Solid particles are moving swiftly in different directions.
A. Only statements 1 and 2 are correct.
C. All statements are incorrect.
B. Only statements 2 and 3 are incorrect.
D. All statements are correct.
7.
A. Solid particles slide past one another, liquid particles move in vibratory motion, while gas particles move swiftly
in different directions.
B. Solid particles move swiftly in different directions, liquid particles slide past one another, and gas particles move in
vibratory motion.
C. Solid particles slide past one another, liquid particles move swiftly in different directions, while has particles slide past
one another.
D. Solid particles move in vibratory motion, liquid particles slide past one another, and gas particles move swiftly in
different directions.
8.
A. Particles in matter become tightly packed when its temperature is increased.
B. Particles in matter become move slower when its temperature is increased.
C. Particles in matter become stationary when its temperature is increased.
D. Particles in matter become loose when its temperature is increased.
9. Which of the following is not a general property of matter?
A. conductivity
C. mass
B. density
D. volume
10.
A. 1 and 2
B. 2 only
C. 3 only
D. 3 and 4
11. Which of the following statements is true about mass and weight?
A. Weight is constant while mass varies.
C. Mass is constant while weight varies.
B. Both mass and weight are constant.
D. Both mass and weight vary.
12. Which of the following physical properties are intensive: mass, volume, density, specific gravity
A. mass and volume
C. mass and density
B. density and specific gravity
D. volume and specific gravity
13. Which of the following physical properties are extensive: mass, volume, density, specific gravity
A. mass and volume
C. mass and density
B. density and specific gravity
D. volume and specific gravity
14. Which of the following statements shows an extensive property of matter?
A. The color of stone remains gray even if it is broken into pieces.
B. The mass of a drop of oil is less compared to a spoonful of oil.
C. The boiling point of a 15 mL and a 1 L water is 100°C.
D. The conductivity of a copper wire is the same regardless of its length.
15. Which of the following physical properties of matter listed below as intensive properties?
A. 1 only
B. 2 only
C. 3 only
D. 1 and 2
16. Which of the following physical properties of matter listed below as extensive properties?
A. 1 only
B. 2 only
C. 3 only
D. 1 and 2
17. Which of the following situations does not show a chemical property of matter?
A. A tablespoon of iodized salt dissolves faster than a tablespoon of rock salt.
B. Gasoline easily catches flame thus making it a good fuel in lighting charcoal briquettes.
C. An iron nail becomes rusty after its long exposure to air and water.
D. Paper towels take shorter time to decompose compared to a cardboard.
18. Liquids A and B are both combustible. However, Liquid A easily ignites when placed near flame while Liquid B takes a
longer time to burn. Which statement correctly describes the chemical properties of Liquids A and B?
A. Liquid A is more flammable than Liquid B.
B. Liquid B is more flammable than Liquid A.
C. Liquids A and B are both combustible but not flammable.
D. Liquids A and B have the same flammability.
19. Solid X can allow heat and electricity to pass through it without immediately turning into liquid. It can also be drawn
into wires but cannot be easily flattened into thin sheets.
Which of the following is not a physical property of Solid X?
A. high ductility
C. low malleability
B. high conductivity
D. low melting point
20. Which properties should be considered in designing electrical components?
1 - high conductivity
3 - low reactivity
2 - high ductility
4 - low melting point
A. 1, 2, and 3
B. 1, 2, 3, and 4
C. 2, 3, and 4
D. 1, 3, and 4
Test II. Write True if the statement is correct and False if the statement is incorrect.
1. Matter is made up of distinct particles. _________
2. Charged particles that make up matter are known as atoms. _________
3. According to Aristotle, there are no empty spaces in matter. _________
4. Democritus’s idea on what composes matter laid the foundation for the particulate nature of matter. __________
5. Intermolecular forces are forces that exist between particles in matter. ___________
6. Particulate drawings are used to illustrate the particles that make up matter. ____________
7. Solid matter has particles that slide past one another. _________
8. General properties of matter are characteristics that are specific to a certain kind of material. ____________
9. Physical properties may be further classified as intensive or extensive. _________
10. Extensive properties are dependent on the amount of matter being observed. ______________
Test III. Match each description to the correct property of matter.
____1. the amount of matter in an object
____2. the space occupied by matter
____3. the ratio between mass and volume
____4. the ability to catch flame easily
____5. the ability to let heat or electricity pass through a material
____6. the capacity of metals to be drawn into wires
____7. the temperature at which a solid turns to liquid
____8. the temperature at which a liquid vaporizes
____9. the ability of a material to decompose
____10. the tendency of a substance to undergo a chemical reaction
A. biodegradability
B. boiling point
C. combustibility
D. conductivity
E. density
F. ductility
G. flammability
H. freezing point
I. mass
J. melting point
K. reactivity
L. volume