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Chemistry > Deck 22 (421 - 440) > Flashcards

Deck 22 (421 - 440) Flashcards

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1
Q
  1. A dissolved solute that does not form ions is:

a. non-electrolyte
b. weak electrolyte
c. strong electrolyte
d. insoluble

A

non-electrolyte

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2
Q
  1. Identify the second reactant for the following reaction:

CH3COOH + X -> CH3COOCH2CH2CH3 + H2O

a. CH3CH2COOH
b. CH3CH2CH2CH2OH
c. CH3CH2CH2COOH
d. CH3CH2CH2OH

A

CH3CH2CH2OH

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3
Q
  1. Which name/formula combination is incorrect?

a. phosphorous acid/H3PO4
b. sodium chromate/Na2CrO4
c. ammonium hydroxide/NH4OH
d. calcium oxide/CaO

A

phosphorous acid/H3PO4

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4
Q
  1. PIC
A
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5
Q
  1. In the chemical reaction:

2 HCl(aq) + Mg(s) <-> MgCl2(aq) + H2(g) + heat

a. energy is absorbed, so the reaction is endothermic
b. energy is released, so the reaction is exothermic
c. energy is released, so the reaction is endothermic
d. energy is absorbed, so the reaction is exothermic

A

energy is released, so the reaction is exothermic

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6
Q
  1. PIC
A
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7
Q
  1. Gasoline and water are:

a. elements
b. precipitates
c. miscible
d. immiscible

A

immiscible

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8
Q
  1. PIC
A
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9
Q
  1. Identify the bond formed between sodium and iodine:

a. ionic
b. covalent
c. metallic
d. peptide

A

ionic

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10
Q
  1. PIC
A
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11
Q
  1. Animal fats are ——— at room temperature

a. solid
b. liquid

A

solid

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12
Q
  1. How many grams of KCl are needed to prepare 400 g of a 2.5 % saline solution?
A

10 g

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13
Q
  1. Identify the addition reaction:
    H+
    a. H3C-CH2-CH2-CH2-OH —-> H3C-CH2-CH=CH2 + H2O
    cat
    b. H3C-CH2-CH2-Cl + NaOH —–> H3C-CH2-CH2-OH + NaCl

c. H2C=CH2 + H2 -> H3C-CH3

d. H3C-CH2-Br -> H2C=CH2 + Her

A

H2C=CH2 + H2 -> H3C-CH3

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14
Q
  1. Which of these possibilities is an example of a homogenous mixture?

a. a bowl of noodle soup
b. a container of water and sand
c. a glass of salt water
d. a bottle of oil and vinegar

A

a glass of salt water

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15
Q
  1. The name of the product of the following reaction is:

H2C=CH-CH2-CH3 + HCL —–>

a. 1-chlorobutane
b. 2-chlorobutane
c. 2-chlorobutene
d. 1-chlorobutene

A

2-chlorobutane

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16
Q
  1. Potassium atoms lose one electron when they react. Write the symbol of the ion that results
A

K+

17
Q
  1. Classify the following reaction as:

CH3CH2Br -> H2C=CH2 + HBr

a. addition
b. elimination
c. substitution
d. rearrangement

A

elimination

18
Q
  1. Which of these does the angular momentum quantum number indicate?

a. the shape of an orbital
b. the main energy level of an electron
c. the orientation of an orbital around the nucleus
d. the spin state of an electron in an orbital

A

the shape of an orbital

19
Q
  1. PIC
A
20
Q
  1. This halogen is the only liquid non-metal:

a. Br
b. Bi
c. B
d. Ba

A

Br

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