Chemistry, Final  Exam Review

1.       The mass number of an element is 60, and its atomic number is 27. How many neutrons are contained in the nucleus?

a.         27

b.         59

c.         33

d.         87

e.         68

2.       Isotopes of the same element are related because they have the same

a.         Atomic mass

b.         atomic weight

c.         atomic number

d.         number of neutrons

e.         arrangement of orbital electrons

3.       If an element has an atomic number of 11, it will combine most readily with an element that has an atomic number of

1. 12
2. 14
3. 15
4. 16
5. 17

4.       What is the maximum number of electrons held in the f orbital?

a.        2

b.        6

c.        8

d.        10

e.        14

5.       Where are the highest ionization energies found in the periodic table?

1. upper left corner
2. lower right corner
3. upper right corner
4. lower left corner
5. middle of the transition elements

6.       Strong bases turn

1. red litmus paper blue
2. blue litmus paper red
3. phenolphthalein to colorless
4. methyl orange purple
5. bromthymol  pink

7.       The property of matter that is independent of its surrounding conditions and position is

1. velocity
2. density
3. mass
4. weight
5. volume

8.       The present scale of atomic mass is based on 1 amu being equal to the mass of

1. 1 hydrogen atom
2. 1/12 of a C-12 atom
3. 1/10 of  an oxygen atom
4. ¼ of a helium atom
5. 1/32 of an oxygen molecule

9.       When most fuels burn, the products include carbon dioxide and

1. hydrocarbons
2. hydrogen
3. hydrogen peroxide
4. water
5. hydroxide

10.   The atomic mass of an atom is mostly due to the weight of

1. protons and neutrons
2. electrons and protons
3. neutrons and electrons
4. positrons and neutrons
5. electrons and neutrons

11.   The oxidation number of Cr in K₂Cr₂O₇ is

1. +2
2. +4
3. +6
4. +8
5. +3

12.   In the reaction of an acid like HCl and a base like AgOH is

1. forms an insoluble salt and water
2. forms a sulfate salt and water
3. forms a volatile product
4. forms a salt and water
5. forms a precipitate

13.   What type of bond is formed between sodium (0.9 electronegativity) and chlorine (3.0 electronegativity)?

1. ionic
2. covalent
3. polar covalent
4. coordinate covalent
5. hydrogen bonding

14.   What is the most probable oxidation number of an element with an atomic number of 16?

1. -3
2. -2
3. -1
4. +1
5. +2

15.   The mass number of a neutral atom is 45 and it has 19 protons.  What is the number of electrons?

1. 26
2. 45
3. 39
4. 58
5. 19

16.   If  an element has an atomic number of  12, the element is

1. an inert gas
2. a metal with oxidation number of +2
3. a metal with oxidation number of +1
4. a nonmetal with an oxidation number of –1
5. a nonmetal with oxidation number of –2

17.   Soft water is used in industrial operations because

1. it tastes better
2. it is a better conductor
3. it has fewer live organisms
4. it boils at a lower temperature
5. it leaves fewer mineral deposits as scales

18.   The point at which all three states of matter can coexist is called the

1. melting point
2. freezing point
3. triple point
4. boiling point
5. condensation point

19.   Which of the following is not a compound?

1. copper sulfate
2. carbon dioxide
3. baking soda
4. air
5. calcium carbonate

20.   How many atoms are represented in the formula Ca₃(PO₄)₂?

1. 5
2. 8
3. 9
4. 12
5. 13

21.   A salt formed from the reaction of sulfurous acid and calcium hydroxide is

1. calcium sulfide
2. calcium sulfite
3. calcium hyposulfite
4. calcium sulfate
5. calcium persulfate

22.   The correct formula for calcium hydrogen sulfate is

1. CaH₂SO₄
2. CaHSO₄
3. Ca(HSO₄)₂
4. Ca₂HSO₄
5. Ca₂H₂SO₄

23.   The bonding that explain the variation of the boiling point of water from the boiling points of similarly structured molecules is

1. hydrogen bonding
2. van der Waals forces
3. covalent bonding
4. ionic bonding
5. coordinate covalent bonding

24.   What are atoms called that have the same number of protons but differ in the number of neutrons in the nucleus?

1. isotopes
2. isomers
3. allotropes
4. amorphous
5. amphoteric

25.   An element with an atomic number of 10 is classified as a(n)

1. metal
2. nonmetal
3. amphoteric element
4. allotropic form
5. transitional element

26.   How many atoms are in 2 mole of water?

1. 3
2. 54
3. 6.02 x 10²³
4. 2 (6.02 x 10²³)
5. 3 (6.02 x 10²³)

27.   Which of the following atoms normally forms monatomic molecules?

1. Cl
2. H
3. O
4. N
5. He

28.   The Rutherford experiment of using a stream of alpha particles on a piece of gold foil proved that

1. the atom was a solid sphere
2. the atom had electrons
3. the atom had neutrons
4. the atom was negatively charged
5. the atoms had a great deal of empty space

29.   In the periodic chart, where would you look for the most electromagnetic elements?

1. the upper left side
2. the lower left side
3. the upper right side
4. the lower right side
5. the bottom period

30.   Which of the following elements in the first group of the periodic chart is the most active metal?

1. Li
2. Na
3. K
4. Rb
5. Cs

31.   When sulfur dioxide is bubbled through water, the solution will contain

1. sulfurous acid
2. sulfuric acid
3. hyposulfuric acid
4. persulfuric acid
5. anhydrous sulfuric acid

32.   When an electron of one atom is completely lost to another atom with the consequent formation of electrostatic charges, it is said to be

1. a covalent bond
2. a polar covalent bond
3. an ionic bond
4. a coordinate covalent bond
5. a pi bond between p orbitals

33.   The most electronegative elements in the periodic chart are found among

1. the metals
2. the nonmetals
3. the metalloids
4. the transition elements
5. the radioactive elements

34.   An example of a physical property is

1. rusting
2. decay
3. souring
4. low melting point
5. combustion

35.   An example of a chemical change is

1. condensation of steam
2. rusting of iron
3. sawing a piece of wood
4. shredding a piece of paper
5. dissolving a lump of sugar in water

36.   Of the basic particles that make up an atom, the one which has the smallest mass is a

1. proton
2. neutron
3. alpha particle
4. electron
5. gamma ray

Use this phase diagram to answer questions 45-47

37.   At which point can only the solid phase exist

1. 1
2. 2
3. 3
4. 4
5. 5

38.   Which point is called the triple point?

1. 1
2. 2
3. 3
4. 4
5. 5

39.   At which point can only the liquid and solid phases coexist?

1. 1
2. 2
3. 3
4. 4
5. 5

40.