Powerpoint Jeopardy

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Powerpoint Jeopardy
Phase Changes Solutions Acids, Bases, pH Redox Solids Liquids
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
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Name this phase change Solid--gt Liquid
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Melting
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For a liqiud to turn to solid a) heat must be
removed b) PE of molecules must decrease c)
molecules must move closer together d) all of
these
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D
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Where is the point on this graph where ice, water
vapor and liquid water all exist in Equilibrium?
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Here! At the triple point.
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What is the boiling Point of this substance?
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140 degrees
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Phase change d is..?
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VAPORIZATION
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Name the two basic components of a SOLUTION.
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Solute and Solvent
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According to the graph, How many grams of
KCl Will make a saturated solution At 80 degrees
C?
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About 52 grams
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Which would dissolve faster AND WHY a) a whole
antacid tablet b) a crushed antacid tablet
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B because of more surface area
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In lab a student found that at 90 degrees C it
took 30 grams of NaCl to make a saturated
solution. What is her error if the accepted
value was 40g?
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25 error
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Which solution is more concentrated Hint find
the Molarity? a) 6.68g NaOH in enough water to
make 500mL solution b) 40.1 g KCl in enough
water to make 1L solution
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B
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Bronsted-Lowry bases __?__ protons (H ions).
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ACCEPT
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Find the mistake for the description of an acid
Sour taste, PH below 7 Turns litmus paper
blue Turns phenolphthalein clear
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Turns litmus paper red
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HCl NaOH ? __?__ __?__.
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NaCl H2O
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For all acidic solutions, which is greater, the
H or OH-?
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H
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Calculate the pOH of a .002M solution of HCl.
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POH 11.3
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True or False Corrosion is an example of a
redox reaction.
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TRUE
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A substance is said to be oxidized when it __?__
electrons.
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LOSES (remember OIL RIG)
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In KClO4 what is the oxidation state of each
element?
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K 1 Cl 7 O -2
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2I- F2 ? I2 2F- Identify the oxidation
and reduction half-reactions.
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Oxidation 2I- ? I2 2e- Reduction F2
2e- ? 2F-
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Identify the species oxidized (the reducing
agent) AND the species reduced (the oxidizing
agent) 4HCl O2 ? 2H2O 2Cl2
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Oxidized (reducing agent) O2 Reduced (oxidizing
agent) Cl-
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What happens to the solubility of gas in liquid
as temp decreases?
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It increases.
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The state in which a substance exists at room
temperature depends mostly on the strength of
__?__ forces between particles. a) attractive b)
repulsive
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A
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A high boiling point corresponds to a __?__
amount of intermolecular forces in a
substance. a) small b) large
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B
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What type of intermolecular forces Are found in
NH3? What about CH4? Which substance would have
a higher boiling pt? a) London dispersion b)
Dipole Dipole c) Hydrogen bonds d) all of these
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NH3 D) all of these CH4 A) London
dispersion Boiling Pt NH3 would be higher
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A __?__ bond is described as the electromagnetic
attraction between the sea of delocalized
electrons and fixed positively charged nuclei
(cations).
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Metallic bond