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Questions
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Explanations
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| 46 Given the formula representing a compound:
This compound is classified as an
(1) amide (3) ester
(2) amine (4) ether
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Match up the functional
groups on Table R
needs both teh C=O and the N
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| 47 Which substance is an electrolyte?
(1) H2 (3) C6H14
(2) HCl (4) C6H12O6
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Electrolytes...Acids or
soluble Ionic compounds
HCl is an acid
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| 48 An indicator is added to an aqueous solution with
a pH value of 5.6. Which indicator is paired with its observed color
in this solution?
(1) Methyl orange is yellow.
(2) Phenolphthalein is pink.
(3) Bromcresol green is yellow.
(4) Thymol blue is blue,
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Use Table M |
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| 49 Solution A has a pH value of 2.0 and solution B has
a pH value of 4.0. How many times greater is the hydronium ion
concentration in solution A than the hydronium ion concentration in
solution B?
(1) 10 (2) 2 (3) 100 (4) 4
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the pH difference is
2 so 2 zeros
100 x great
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| 50 Which net change occurs in both nuclear fission
and nuclear fusion reactions?
(1) Mass is converted to energy:
(2) Energy is converted to mass.
(3) Small nuclei form a larger nucleus.
(4) A large nucleus forms smaller nuclei.
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nuclear energy comes
from
mass converting to energy
E=mc2
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