Q. If 5 grams of salt is dissolved in 100 mL of water, what is the mass of the solution?
-
A.
100 g
-
B.
105 g
-
C.
95 g
-
D.
110 g
Solution
The mass of the solution is the mass of the solute plus the mass of the solvent: 5 g + 100 g = 105 g.
Correct Answer:
B
— 105 g
Learn More →
Q. If a solid is heated, what is the most likely change that will occur?
-
A.
It will become a gas
-
B.
It will become a liquid
-
C.
It will remain solid
-
D.
It will explode
Solution
Heating a solid typically causes it to gain energy and change into a liquid.
Correct Answer:
B
— It will become a liquid
Learn More →
Q. What happens to the volume of a gas when it is compressed?
-
A.
Increases
-
B.
Decreases
-
C.
Remains the same
-
D.
Vaporizes
Solution
The volume of a gas decreases when it is compressed due to the particles being forced closer together.
Correct Answer:
B
— Decreases
Learn More →
Q. What is the boiling point of water at sea level in Celsius?
-
A.
0°C
-
B.
50°C
-
C.
100°C
-
D.
150°C
Solution
The boiling point of water at sea level is 100°C.
Correct Answer:
C
— 100°C
Learn More →
Q. What is the process called when a solid changes directly into a gas?
-
A.
Melting
-
B.
Sublimation
-
C.
Condensation
-
D.
Evaporation
Solution
The process of a solid changing directly into a gas is called sublimation.
Correct Answer:
B
— Sublimation
Learn More →
Q. What is the state of matter with a definite shape and volume?
-
A.
Solid
-
B.
Liquid
-
C.
Gas
-
D.
Plasma
Solution
Solids have a definite shape and volume due to closely packed particles.
Correct Answer:
A
— Solid
Learn More →
Q. Which of the following has the highest kinetic energy?
-
A.
Solid
-
B.
Liquid
-
C.
Gas
-
D.
All are equal
Solution
Gases have the highest kinetic energy due to the rapid movement of their particles.
Correct Answer:
C
— Gas
Learn More →
Q. Which of the following is an example of a gas?
-
A.
Ice
-
B.
Water
-
C.
Oxygen
-
D.
Mercury
Solution
Oxygen is a gas at room temperature, while the others are solids or liquids.
Correct Answer:
C
— Oxygen
Learn More →
Q. Which of the following is NOT a characteristic of liquids?
-
A.
Definite volume
-
B.
Definite shape
-
C.
Incompressible
-
D.
Fluidity
Solution
Liquids have a definite volume but take the shape of their container, so they do not have a definite shape.
Correct Answer:
B
— Definite shape
Learn More →
Q. Which state of matter has particles that are far apart and move freely?
-
A.
Solid
-
B.
Liquid
-
C.
Gas
-
D.
None of the above
Solution
In gases, particles are far apart and move freely, allowing them to fill the container.
Correct Answer:
C
— Gas
Learn More →
Showing 1 to 10 of 10 (1 Pages)
