Chapter 3 Practice Problems PDF

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Practice problems on balancing the equations, naming compounds/ionic compounds/ acids, lewis dot structures....

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Chem 2

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Practice Exam 3 Multiple Choice Part: 1. What is the maximum number of electrons that can fill the second principal energy level? a. 8 b. 9 c. 10 d. 11

2. How many electrons are in 2p of phosphorus atom? a. 2 b. 4 c. 6 d. 8

3. How many valence electrons does S have? a. 6 b. 7 c. 8 d. 9

4. Which of the following element has 4 electrons in the second p level? a. Boron b. Carbon c. Nitrogen d. Oxygen

5. Which of the following element has 4 electrons in the 3d level? a. Sc b. Ti c. V d. Cr

6. What is the geometry shape of CO2? a. Linear b. Trigonal Planar c. Tetrahedral d. Bent

Chem 2 7. Which of the following is NOT correct regarding the central atom in the Lewis structure? a. The central atom has the least electronegativity. b. The central atom has the highest electronegativity. c. The central atom has the highest number of atoms. d. Oxygen is always the central atom.

8. Which of the following is CORRECT regarding a chemical bond? a. It is the attraction of the nuclei of the atoms. b. It has to have at least five atoms. c. It is the force that holds atom together. d. It is that force from electron repulsion.

9. Which of the following statement is CORRECT? a. The volume of gas is directly proportional to pressure at constant temperature. b. The volume of gas is inversely proportional to temperature at constant pressure. c. The volume of gas is inversely proportional to pressure at constant temperature. d. The volume of gas is directly proportional to temperature at constant pressure.

10. What happens the speed of gas molecules if we increase the temperature? a. They move faster. b. The move slower. c. Their speed doesn’t change since it is not dependent upon the temperature. d. None of the above.

11. How much atm is in 102,677 Pa? (Given 1 atm = 101,325 Pa) a. 0.36 atm b. 1.01 atm c. 2.21 atm d. 0.89 atm

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