Part A Definitions (2 points each)

1. Anode - Answer

2._Answer__  is the burning in oxygen to produce flame and heat.

3. Electrolysis - Answer

4. _Answer_ is a positively charged electrode.

5. Oxidation state - Answer

6. _Answer__  is the coating of an object with matter, using electricity.

7. Hydrocarbon -Answer

8. _Answer_  is a molecule which has the same formula but different structure.

9. Primary carbon - Answer

10. _Answer_  is the sharing of six electrons.

Part B. Concepts

1 . In the following reaction, identify the oxidizing agent, the reducing agent, the oxidized element and the reduced element (8 points) Answer
     4 Ag + O₂ + 2 H₂O ---> 4 Ag⁺ + OH^-
 

2. Indicate the oxidation state of the underlined element in each of the following compounds. (6 points) Answer

3. List the definitions for oxidation and reduction. (6 points) Answer

4. Construct a diagram of a water electrolyzing cell. (5 points)Answer

5. Name the following molecules. (6 points) Answer

6. Describe the process of separating road tar from gasoline. (5 points) Answer

7. Draw a box around each functional group in the following molecule and label it. (10 points) Answer

8. What is a functional group anyway? (4 points) Answer

Part C. Multiple Choice (2 points each)

1. What of the following compounds is an ether? Answer
    a. CH₃-CO-CH₃
    b. CH₃CH₂-OH
    c. C₂H₅-O-C₂H₅
    d. CH₃(CH₂)₅-OH

2. CH₃-CHOH-CH₃ is a Answer
    a. primary alcohol
    b. secondary alcohol
    c. tertiary alcohol
    d. quaternary alcohol

3. What is the name of CH₃CH₂CH₂CH₃? Answer
    a. tetrane
    b. propane
    c. tetracarbon decahydrogen
    d. butane

4. What is the name of  Answer
    a, 1,1,2,2-tetramethylethane
    b. 2,3-dimethylbutane
    c. 2-isopropylpropane
    d. none of the above

5. The amount of heat delivered from octane compared to propane is Answer
    a. A greater amount per gram.
    b. An equal amount per gram.
    c. A lesser amount per gram
    d. Not enough information is provided.

6. Which of the following molecule pairs would make a good buffer system? Answer
    a. HCl and NaCl
    b. NaCl and CH₃COOH
    c. CH₃COONa and HCl
    d. CH₃COOH and CH₃COONa

7. The oxidation state of sulfur in SO₄^2- is Answer
    a. +6
    b. +8
    c. -8
    d. -6

8. The pH of a solution having a pOH of 4 is Answer
    a. 4
    b. -4
    c. 14
    d. 10

9. The molarity of a solution containing 113.0 g NaCl in 250.0 mL of water is Answer
    a. 2.1
    b. 26.4
    c. 7.7
    d. 113.0

10. The normality of a 1.2 molar solution of sulfuric acid is Answer
    a. 1.2
    b. 2.4
    c. none of the above
    d. not enough information is given

11. If 25 mL of 3 M HCl is diluted to 100 mL, the molarity is Answer
    a. 12.0
    b. 0.75
    c. 3.00
    d. none of the above

12. Ammonia, NH₃, is a(n) Answer
    a. acid
    b. base
    c. conjugate acid
    d. conjugate base

13. Which of the following substances could be added to a lake to counteract the effect of acid rain? Answer
    a. vinegar, CH₃COOH
    b. Tums, CaCO₃
    c. sodium dihydrogen phosphate, NaH₂PO₄
    d. none of the above

14. The following substance with the highest boiling point would be Answer
    a. CH₃-O-CH₃
    b. CH₃CH₂-O-CH₂CH₃
    c. CH₃OH
    d. not enough information is given

15. The atmosphere of Jupiter contains mostly hydrogen and methane. Which of the following terms would describe this atmosphere? Answer
    a. acidic
    b. oxidizing
    c. reducing
    d. basic

Part A. Definitions (2 points each)

1. Chemistry - Answer

2. Matter - Answer

3. Atom - Answer

4. _Answer_ is mass per unit volume.

5. _Answer_ is the number of atomic mass units an atom weighs.

6. _Answer__  is a combination of 2 or more elements.

7. Somatic mutation - Answer

8. _Answer_  is how strongly an atom pulls on another atom's electrons.

9. _Answer_ - A positively charged ion

10. _Answer_  is an electrostatic attraction between a cation and anion

11. Tetrahedral molecule - Answer

12. _Answer_  is a subatomic particle having no charge and a mass of one atomic mass unit.

13. Solvent - Answer

14. _Answer_ is the conversion of a gas to a liquid

15. Molar mass - Answer

Part B. Multiple Choice (2 points each)
1 . Which of the following elements has chemical properties similar to those of potassium? Answer
    a. Calcium
    b. Scandium
    c. Rubidiurn
    d. Strontium

2. Which of the following elements is an alkali metal?Answer
    a. He
    b. Na
    c. O
    d. Cl

3. How many atoms of hydrogen are involved in this equation?Answer
    a. 9
    b. 18
    c. 27
    d. 36

4. How many molecules of oxygen are involved?Answer
    a. 25
    b. 50
    c. 100
    d. 200

5. If I begin with 2 moles of C₈H₁₈, how many moles of CO₂ should I end up with? Answer
    a. 2
    b. 4
    c. 16
    d. 32

6. How many elements are involved in the reaction? Answer
    a. 27
    b. 3
    c. 4
    d. 54

7. What product is formed by alpha emission from uranium-235?Answer
    a. ²³¹Th
    b. ²³³Th
    c. ²³⁵U
    d. ²³⁶U

8. How many valence electrons does ²⁸Si have Answer
    a. 14
    b. 10
    c. 4
    d. 2

9. What fourth period element is represented by the dot formula E° Answer
    a. K
    b. Ca
    c. Se
    d. Br

10. The charge on a indium ion is Answer
    a. +3
    b. +2
    c. 0
    d. -2
    e. -3

11. Which of the following elements is most likely to form an ion with a +1 charge? Answer
    a. ¹⁴Mg
    b. ³¹S
    c. ²¹K
    d. ⁷⁹B

12. Which formula would be correct for an ionic compound formed between iron and chlorine?Answer
    a. FeCl
    b. FeC1₂
    c. FeC1₃
    d. not enough information is given

13. What is the name of CaCl₂?Answer
    a. calcium (II) chloride
    b. dicalcium chloride
    c. calcium chloride
    d. calcium dichloride
 

14. What is the formula of the carbonate ion?Answer
    a. CO₂^3-
    b. CO₃^3-
    c. CO₃^2-
    d. CO₂^2-

15. A bond formed between two identical atoms will beAnswer
    a. ionic
    b. covalent
    c. atomic
    d. metallic

16. Which of the following does not describe the gaseous state? Answer
    a. Same shape as a closed container
    b. Same volume as a closed container
    c. Difficult to compress
    d. Easy to warm up

17. Which of the following is metric units of mass? Answer
    a. pound
    b. gram
    c. milliliter
    d. g/mL

18. Which of the following is a chemical property? Answer
    a. melting point
    b. weight
    c. rusting
    d. temperature

19. Which of the following is a pure substance?Answer
    a. sugar
    b. eggs
    c. beer
    d. salad dressing

20. What is the chemical symbol for calcium? Answer
    a. C
    b. Ca
    c. Cl
    d. Cu

21. In scientific notation, the number 0.046 is expressed as Answer
    a. 46 x 10^-3
    b. 4.6 x 10^-3
    c. 4.6 x 10^-2
    d. 46 x 10^-2

22. Which of the following numbers contains six significant figures? Answer
    a. 230,100
    b. 2,301.00
    c. 0.23010
    d. 0.002301

23. The smallest piece of an element that retains that element's characteristics is the Answer
    a. molecule
    b. neutron
    c. atom
    d. proton

24. Which of the following is not a solution? Answer
    a. A mixture of N₂ and O₂ gases.
    b. A coin made from Ni and Cu metals.
    c. Great Salt Lake water.
    d. Mississippi river mud.

25. The strongest force of attraction between two molecules of SiCl₄ would be Answer
    a. London forces
    b. dipole-dipole interactions
    c. hydrogen bonds
    d. ionic bonds

26. The formula  Answer
    a. an empirical formula
    b. a molecular formula
    c. a condensed formula
    d. a structural formula

27. There are 2.54 cm in 1.0 inch. How many cm are in 4.5 inches?Answer
    a. 29.2
    b. 0.221
    c. 4.53
    d. none of the above

28. The electron configuration of oxygen is Answer
    a. ls² 2p⁴
    b. 2s² 2p⁴
    c. 1s² 2s² 2p⁶
    d. none of the above

29. On the periodic table, atomic size increases Answer
    a. up and to the right
    b. up and to the left
    c. down and to the right
    d. down and to the left

30. An element reacts with chlorine to form EC1₃. The location of this element is Answer
    a. group 1
    b. group 3
    c. period 3
    d. period 1

31. The molecular shape of O=Si=O is Answer
    a. linear
    b. bent
    c. pyramidal
    d. tetrahedral

32. The type of bond forming between nitrogen and fluorine is Answer
    a. ionic
    b. polar covalent
    c. nonpolar covalent
    d. metallic

31 The name of PC1₅ is Answer
    a. phosphate pentachloride
    b. monophosphorous pentachloride
    c. phosphorous pentachloride
    d. phosphorous chloride

34. The coefficients for the reaction C₃H₈ + O₂ ----> H₂O + CO₂ are Answer
    a. 1, 10, 4, 3
    b. 1, 5, 4, 3
    c. 1, 10, 3, 4
    d. 1, 5, 3, 4

35. The number of neutrons in ⁶⁴Cu is Answer
    a. 64
    b. 29
    c. 35
    d. none of the above

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