Matching (Value 9)
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Match each item with the correct statement below. a. | product | d. | balanced equation | b. | reactant | e. | skeleton equation | c. | chemical
equation |
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1.
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a chemical equation that does not indicate relative amounts of reactants and
products
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2.
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a new substance formed in a chemical reaction
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3.
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a starting substance in a chemical reaction
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4.
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a concise representation of a chemical reaction
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5.
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an equation in which each side has the same number of atoms of each
element
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Match each item with the correct statement below. a. | activity series of metals | c. | combustion
reaction | b. | single-replacement reaction | d. | decomposition reaction |
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6.
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a reaction in which a single compound is broken down into simpler
substances
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7.
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a reaction in which oxygen reacts with another substance, often producing heat
or light
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8.
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a reaction in which the atoms of one element replace the atoms of a second
element in a compound
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9.
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a list of metals in order of decreasing reactivity
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Multiple Choice (Value 41) Identify the choice that best completes the statement or answers
the question.
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10.
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Chemical reactions ____.
a. | occur only in living organisms | c. | only occur outside living
organisms | b. | create and destroy atoms | d. | produce new substances |
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11.
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Everyday equations describe ____.
a. | thermonuclear reactions | c. | chemical
reactions | b. | everyday processes | d. | biological chemistry |
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12.
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What does the symbol ![mc012-1.jpg](ch11sect1and2_files/mc012-1.jpg) in a
chemical equation mean?
a. | Heat is supplied to the reaction. | c. | yields | b. | A catalyst is
needed. | d. | precipitate |
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13.
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Chemical equations ____.
a. | describe chemical reactions | b. | show how to write chemical
formulas | c. | give directions for naming chemical compounds | d. | describe only
biological changes |
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14.
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A skeleton equation does NOT show which of the following?
a. | the correct formulas of the reactants and products | b. | the reactants on the
left, the products on the right | c. | an arrow connecting the reactants to the
products | d. | the relative amounts of reactants and products |
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15.
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Symbols used in equations, together with the explanations of the symbols, are
shown below. Which set is correct?
a. | (g), grams | c. | (aq), dissolved in water | b. | (l),
liters | d. | (s), solid
product |
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16.
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A catalyst is ____.
a. | the product of a combustion reaction | b. | not used up in a reaction | c. | one of the reactants
in single-replacement reactions | d. | a solid product of a
reaction |
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17.
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Which of the following is the correct skeleton equation for the reaction that
takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide?
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18.
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If you rewrite the following word equation as a balanced chemical equation, what
will the coefficient and symbol for fluorine be? nitrogen trifluoride ![mc018-1.jpg](ch11sect1and2_files/mc018-1.jpg) nitrogen ![mc018-2.jpg](ch11sect1and2_files/mc018-2.jpg) fluorine
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19.
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What are the coefficients that will balance the skeleton equation
below? AlCl ![mc019-1.jpg](ch11sect1and2_files/mc019-1.jpg) + NaOH ![mc019-2.jpg](ch11sect1and2_files/mc019-2.jpg)
Al(OH) ![mc019-4.jpg](ch11sect1and2_files/mc019-4.jpg) NaCl
a. | 1, 3, 1, 3 | c. | 1, 1, 1, 3 | b. | 3, 1, 3, 1 | d. | 1, 3, 3, 1 |
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20.
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When the following equation is balanced, what is the coefficient for HCl?
Mg( s) ![mc020-1.jpg](ch11sect1and2_files/mc020-1.jpg) HCl( aq) ![mc020-2.jpg](ch11sect1and2_files/mc020-2.jpg)
MgCl ![mc020-3.jpg](ch11sect1and2_files/mc020-3.jpg) ( aq) ![mc020-4.jpg](ch11sect1and2_files/mc020-4.jpg) H ![mc020-5.jpg](ch11sect1and2_files/mc020-5.jpg) ( g)
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21.
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Which of the following statements is NOT true about what happens in all chemical
reactions?
a. | The ways in which atoms are joined together are changed. | b. | New atoms are formed
as products. | c. | The starting substances are called reactants. | d. | The bonds of the
reactants are broken and new bonds of the products are formed. |
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22.
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Chemical equations must be balanced to satisfy ____.
a. | the law of definite proportions | c. | the law of conservation of
mass | b. | the law of multiple proportions | d. | Avogadro’s principle
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23.
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When the equation KClO ![mc023-1.jpg](ch11sect1and2_files/mc023-1.jpg) ( s) ![mc023-2.jpg](ch11sect1and2_files/mc023-2.jpg) KCl( s) + O ![mc023-3.jpg](ch11sect1and2_files/mc023-3.jpg) ( g) is balanced, the coefficient of KClO 3 is ____.
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24.
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What are the missing coefficients for the skeleton equation below?
Al ![mc024-1.jpg](ch11sect1and2_files/mc024-1.jpg) (SO ![mc024-2.jpg](ch11sect1and2_files/mc024-2.jpg) ) ![mc024-3.jpg](ch11sect1and2_files/mc024-3.jpg) ( aq) ![mc024-4.jpg](ch11sect1and2_files/mc024-4.jpg) KOH( aq) ®
Al(OH) ![mc024-5.jpg](ch11sect1and2_files/mc024-5.jpg) ( aq) ![mc024-6.jpg](ch11sect1and2_files/mc024-6.jpg) K ![mc024-7.jpg](ch11sect1and2_files/mc024-7.jpg) SO ![mc024-8.jpg](ch11sect1and2_files/mc024-8.jpg) ( aq)
a. | 1, 3, 2, 3 | c. | 4, 6, 2, 3 | b. | 2, 12, 4, 6 | d. | 1, 6, 2, 3 |
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25.
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The product of a combination reaction is Ba(OH) ![mc025-1.jpg](ch11sect1and2_files/mc025-1.jpg) . If one of
the reactants is H ![mc025-2.jpg](ch11sect1and2_files/mc025-2.jpg) O, what is the other reactant?
a. | Ba O | c. | BaH | b. | BaO | d. | BaO![mc025-4.jpg](ch11sect1and2_files/mc025-4.jpg) |
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26.
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In order to predict whether or not a single-replacement reaction takes place,
you need to consult a chart that shows the ____.
a. | periodic table | b. | activity series of metals | c. | common polyatomic
ions | d. | ionic charges of representative elements |
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27.
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In order for the reaction 2Al ![mc027-1.jpg](ch11sect1and2_files/mc027-1.jpg) 6HCl ![mc027-2.jpg](ch11sect1and2_files/mc027-2.jpg) 2AlCl ![mc027-4.jpg](ch11sect1and2_files/mc027-4.jpg) 3H ![mc027-5.jpg](ch11sect1and2_files/mc027-5.jpg) to occur,
which of the following must be true?
a. | Al must be above Cl on the activity series. | b. | Al must be above H
on the activity series. | c. | Heat must be supplied for the
reaction. | d. | A precipitate must be formed. |
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28.
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The products of a combustion reaction do NOT include ____.
a. | water | c. | carbon monoxide | b. | carbon dioxide | d. | hydrogen |
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29.
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In a double-replacement reaction, the ____.
a. | products are always molecular | b. | reactants are two ionic
compounds | c. | reactants are two elements | d. | products are a new element and a new
compound |
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30.
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Which of the following statements is NOT correct?
a. | The only way to determine the products of a reaction is to carry out the
reaction. | b. | All chemical reactions can be classified as one of five general
types. | c. | Complete combustion has occurred when all the carbon in the product is in the form of
carbon dioxide. | d. | A single reactant is the identifying characteristic of a decomposition
reaction. |
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31.
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Which of the following is a balanced equation representing the decomposition of
lead(IV) oxide?
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32.
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What are the correct formulas and coefficients for the products of the following
double-replacement reaction? RbOH ![mc032-1.jpg](ch11sect1and2_files/mc032-1.jpg) H ![mc032-2.jpg](ch11sect1and2_files/mc032-2.jpg) PO
![mc032-4.jpg](ch11sect1and2_files/mc032-4.jpg)
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33.
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Which of the following statements is NOT true about the decomposition of a
simple binary compound?
a. | The products are unpredictable. | b. | The products are the constituent
elements. | c. | The reactant is a single substance. | d. | The reactant could be an ionic or a molecular
compound. |
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34.
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Which of the following statements is true about single-replacement
reactions?
a. | They are restricted to metals. | c. | Two reactants produce two
products. | b. | They involve a single product. | d. | Any metal replaces any other
metal. |
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35.
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Use the activity series of metals to complete a balanced chemical equation for
the following single replacement reaction. Ag( s) ![mc035-1.jpg](ch11sect1and2_files/mc035-1.jpg) KNO ![mc035-2.jpg](ch11sect1and2_files/mc035-2.jpg) ( aq) ![mc035-3.jpg](ch11sect1and2_files/mc035-3.jpg)
a. | AgNO K | b. | AgK
NO![mc035-7.jpg](ch11sect1and2_files/mc035-7.jpg) | c. | AgKNO![mc035-8.jpg](ch11sect1and2_files/mc035-8.jpg) | d. | No reaction takes place because silver is less
reactive than potassium. |
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36.
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Which of the following statements is NOT true about double-replacement
reactions?
a. | The product may precipitate from solution. | b. | The product may be a
gas. | c. | The product may be a molecular compound. | d. | The reactant may be
a solid metal. |
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37.
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In a double-replacement reaction, ____.
a. | the reactants are usually a metal and a nonmetal | b. | one of the reactants
is often water | c. | the reactants are generally two ionic compounds in aqueous
solution | d. | energy in the form of heat or light is often produced |
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38.
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Which of the following is the correctly balanced equation for the incomplete
combustion of heptene, C ![mc038-1.jpg](ch11sect1and2_files/mc038-1.jpg) H ![mc038-2.jpg](ch11sect1and2_files/mc038-2.jpg) ?
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39.
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The reaction 2Fe ![mc039-1.jpg](ch11sect1and2_files/mc039-1.jpg) 3Cl ![mc039-3.jpg](ch11sect1and2_files/mc039-3.jpg) 2FeCl ![mc039-4.jpg](ch11sect1and2_files/mc039-4.jpg) is an example of which type of
reaction?
a. | combustion reaction | c. | combination reaction | b. | single-replacement reaction | d. | decomposition
reaction |
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40.
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The equation 2C ![mc040-1.jpg](ch11sect1and2_files/mc040-1.jpg) H ![mc040-2.jpg](ch11sect1and2_files/mc040-2.jpg) OH ![mc040-3.jpg](ch11sect1and2_files/mc040-3.jpg) 9O ![mc040-5.jpg](ch11sect1and2_files/mc040-5.jpg)
6CO ![mc040-7.jpg](ch11sect1and2_files/mc040-7.jpg) 8H ![mc040-8.jpg](ch11sect1and2_files/mc040-8.jpg) O is an
example of which type of reaction?
a. | combustion reaction | c. | double-replacement reaction | b. | single-replacement
reaction | d. | decomposition
reaction |
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41.
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A double-replacement reaction takes place when aqueous cobalt(III) chloride
reacts with aqueous lithium hydroxide. One of the products of this reaction is ____.
a. | Co(OH)![mc041-1.jpg](ch11sect1and2_files/mc041-1.jpg) | c. | LiCo![mc041-3.jpg](ch11sect1and2_files/mc041-3.jpg) | b. | Co(OH)![mc041-2.jpg](ch11sect1and2_files/mc041-2.jpg) | d. | LiCl![mc041-4.jpg](ch11sect1and2_files/mc041-4.jpg) |
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Short Answer
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42.
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Complete and balance the following equation. Cd(NO ![sa042-1.jpg](ch11sect1and2_files/sa042-1.jpg) ) ![sa042-3.jpg](ch11sect1and2_files/sa042-3.jpg) NH ![sa042-4.jpg](ch11sect1and2_files/sa042-4.jpg) Cl ![sa042-5.jpg](ch11sect1and2_files/sa042-5.jpg)
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43.
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Balance the following equation. C ![sa043-1.jpg](ch11sect1and2_files/sa043-1.jpg) H ![sa043-3.jpg](ch11sect1and2_files/sa043-3.jpg) O ![sa043-5.jpg](ch11sect1and2_files/sa043-5.jpg) CO ![sa043-6.jpg](ch11sect1and2_files/sa043-6.jpg)
H ![sa043-7.jpg](ch11sect1and2_files/sa043-7.jpg) O
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44.
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Balance the following equation. Au ![sa044-1.jpg](ch11sect1and2_files/sa044-1.jpg) O ![sa044-3.jpg](ch11sect1and2_files/sa044-3.jpg) Au ![sa044-4.jpg](ch11sect1and2_files/sa044-4.jpg) O ![sa044-5.jpg](ch11sect1and2_files/sa044-5.jpg)
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45.
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Balance the following equation. Na ![sa045-1.jpg](ch11sect1and2_files/sa045-1.jpg) PO ![sa045-3.jpg](ch11sect1and2_files/sa045-3.jpg) ZnSO ![sa045-5.jpg](ch11sect1and2_files/sa045-5.jpg) Na ![sa045-6.jpg](ch11sect1and2_files/sa045-6.jpg) SO ![sa045-8.jpg](ch11sect1and2_files/sa045-8.jpg) Zn ![sa045-9.jpg](ch11sect1and2_files/sa045-9.jpg) (PO ![sa045-10.jpg](ch11sect1and2_files/sa045-10.jpg) ) ![sa045-11.jpg](ch11sect1and2_files/sa045-11.jpg)
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46.
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Complete and balance the following equation. Al ![sa046-1.jpg](ch11sect1and2_files/sa046-1.jpg) Cl ![sa046-3.jpg](ch11sect1and2_files/sa046-3.jpg)
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47.
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Complete and balance the following equation. CH
![sa047-2.jpg](ch11sect1and2_files/sa047-2.jpg) O ![sa047-4.jpg](ch11sect1and2_files/sa047-4.jpg) CO ![sa047-6.jpg](ch11sect1and2_files/sa047-6.jpg)
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48.
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Complete and balance the following equation. Fe ![sa048-1.jpg](ch11sect1and2_files/sa048-1.jpg) (SO ![sa048-2.jpg](ch11sect1and2_files/sa048-2.jpg) ) ![sa048-4.jpg](ch11sect1and2_files/sa048-4.jpg) Ba(OH) ![sa048-6.jpg](ch11sect1and2_files/sa048-6.jpg)
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49.
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Balance the following equation. Indicate whether combustion is complete or
incomplete. C ![sa049-1.jpg](ch11sect1and2_files/sa049-1.jpg) H ![sa049-3.jpg](ch11sect1and2_files/sa049-3.jpg) O ![sa049-5.jpg](ch11sect1and2_files/sa049-5.jpg)
CO ![sa049-6.jpg](ch11sect1and2_files/sa049-6.jpg) H ![sa049-7.jpg](ch11sect1and2_files/sa049-7.jpg) O
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50.
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Balance the following equation. Indicate whether combustion is complete or
incomplete. 2C ![sa050-1.jpg](ch11sect1and2_files/sa050-1.jpg) H ![sa050-2.jpg](ch11sect1and2_files/sa050-2.jpg) OH ![sa050-3.jpg](ch11sect1and2_files/sa050-3.jpg)
O ![sa050-5.jpg](ch11sect1and2_files/sa050-5.jpg)
CO ![sa050-7.jpg](ch11sect1and2_files/sa050-7.jpg) H ![sa050-8.jpg](ch11sect1and2_files/sa050-8.jpg) O
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