1) What is the formula for hydrogen chloride?
A) HCl
B) H2SO4
C) H2O
D) NaOH

2) Which of the following is an example of a mixture?
A) Water
B) Hydrogen Chloride
C) Calcium
D) Gasoline

3) Which of the following represents an element?
A) Fire
B) C
C) H2O
D) CaCl2

4) What is 25° C (Celsius) converted to Kelvins?
A) 500 K
B) 550 K
C) 298 K
D) 0 K

5) What is 98.6° F (Fahrenheit) converted to Celsius?
A) 67.8°
B)  37.0°
C) 40.0°
D) 106°

6) What is the best definition for a theory?
A) A statement of fact based on large amounts of supporting evidence
B)  An educated opinion describing why something happens
C) Detailed observations about nature and our physical world
D) Tangible items to represent invisible processes

7) What is the mass of 78.0 mL of NaOH which has a density of 1.32g/mL?
A) 50.0g
B) 35.55g
C) 68.99g
D) 102.96g

8) How do you reconstruct the density formula to find the volume?
A) V = m/d
B) V = m* d
C) V = d/m
D) It is impossible to reconstruct the formula.

9) Which of the following is an example of a chemical change?
A) Ice cubes form inside the freezer.
B) Vapor forms around you when it is a very humid day.
C) A stick of butter is melted.
D) A car fender gets rusty.

10) What is the best definition for energy?
A) It is the ability to change matter, either chemically or physically.
B) It is the potential to turn a light on.
C) It is the electrical power that gives us a better life.
D) It is the force necessary to move an object.