PRAXIS II Test Study Guide | PRAXIS II Test Flashcards

Praxis II Chemistry Content Knowledge Test Questions

1. What kind of process absorbs heat from its surroundings?

1. endothermic

2. spontaneous

3. exothermic

4. isothermic

2. What is the mass of one mole of oxygen gas?

1. 1 gram

2. 12 grams

3. 16 grams

4. 32 grams

3. Which of the following formulae represents an alkaline?

1. C₅H₁₂

2. C₂H₆O

3. C₂H₂

4. C₄H₄

4. Which of the following names is incorrect?

1. SO₂ sulfur dioxide

2. CCl₄ carbon trichloride

3. AsCl₃ arsenic trichloride

4. OF₂ oxygen difluoride

5. What is the chemical name for the binary compound N₂0?

1. nitrogen oxide

2. nitrogen dioxide

3. dinitrogen monoxide

4. nitride oxide

6. What is molality?

1. ratio of number of moles of a substance in a solution to the total number of moles

2. 100 x (mass of solute/mass of solution)

3. moles of solute per liter of solution

4. moles of solute per kilogram of solvent

7. Which of the following is NOT a nuclear reaction?

1. nuclear decay

2. fission

3. radioactivity

4. fusion

8. What is another name for electron loss?

1. oxidation

2. reduction

3. reaction

4. galvanization

9. What is the appropriate use of an Erlenmeyer flask?

1. measuring volumes

2. transferring liquids

3. mixing chemicals

4. dispensing droplets of liquid

10. What is the name for the amount of given product formed if all limiting reactant is consumed by the reaction?

1. percent yield

2. actual yield

3. real yield

4. theoretical yield

11. How many bonding pairs of electrons are there in Cl₂?

1. 1

2. 2

3. 4

4. 6

12. What are the columns in the Periodic Table called?

1. Series

2. Systems

3. Groups

4. Periods

13. What kind of spin do unpaired electrons in degenerate orbitals have?

1. Diagonal

2. Perpendicular

3. Opposite

4. Parallel

14. What is the SI unit of energy?

1. Kelvin

2. Joule

3. Ohm

4. Erg

15. Which of the following colors is composed of waves with the longest wavelengths?

1. Blue

2. Red

3. Yellow

4. Violet

16. Science is composed of these areas:

1. Natural Science

2. Social Science

3. Formal Science

4. All of the above

17. Scientific method is used to:

1. Explore predetermined theories

2. Prove that processes follow a predictable path

3. Integrate information

4. All of the above

18. Which step is not part of the scientific method?

1. Question posed

2. Research done

3. Earlier tests are ignored

4. Analysis

19. Chemistry studies matter in relation to:

1. Evolution

2. Entropy

3. The environment

4. All of the above

20. Which of the following is not a discipline in chemistry?

1. Organic

2. Biochemistry

3. Molecular

4. Analytical

21. The fundamental states of matter include:

1. Atoms

2. Plasma

3. Elements

4. All of the above

22. Forms of energy include:

1. Genes

2. Elements

3. Electric

4. All of the above

23. The chemical reaction rate depends on:

1. Reactants involved

2. Unpredictable and impossible to understand

3. Motion of the molecules involved

4. All of the above

24. Types of chemical reactions include:

1. Genetic

2. Synthesis

3. Evolution

4. All of the above

25. Students studying science should be assessed on their ability to:

1. Memorize data

2. Communicate related data

3. Evaluate results

4. All of the above

26. Chemistry studies matter in relation to:

1. Energy

2. Evolution

3. Space

4. All of the above

27. Scientific method is used to:

1. Investigate crime

2. Predict the future

3. Integrate information

4. Follows a predictable path

Praxis II Chemistry Content Knowledge Test Answer Key