Chemical

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• Chemical
• JEOPARDY!

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Chemical Jeopardy
Atoms More Atoms Empirical Formulas Stoichio-metry Limiting Reagents Potpourri
100 100 100 100 100 100
200 200 200 200 200 200
300 300 300 300 300 300
400 400 400 400 400 400
500 500 500 500 500 500
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Atoms 100

• These particles are responsible for most of the
  mass of an atom.
• What are protons and neutrons?
• Chem is try

4
Atoms 200

• An atom of phosphorous (P) would have this
  charge if it gained three electrons.
• What is -3?
• Chem is try

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Atoms 400

• An alpha particle is composed of two protons and
  two neutrons. If an atom of 224Ra emits two alpha
  particles, this atom will result.
• What is 216Po?
• Chem is try

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Atoms 300

• 56Fe2 has this many protons, neutrons, and
  electrons
• What are 26, 30, and 24?
• Chem is try

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Molarity 500

• Describe what is going on here
• What is Rutherfords Gold Foil Experiment?
• Chem is try

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More Atoms 100

• This is the molar mass of the amino acid glycine,
  C2H6NO2
• What is 76 g/mol?
• Chem is try

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More Atoms 200

• This is the molar mass of Cu(NO3)2
• What is 187.57 g/mol?
• Chem is try

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More Atoms 300

• There are this many molecules of glucose
  (C6H12O6) in 1.50 g of the substance?
• What are 5.0 x 1021 molecules?
• Chem is try

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More Atoms 400

• There are this many atoms of hydrogen in 22.50 g
  of the gas. Remember, hydrogen is a diatomic
  molecule.
• What are ________ atoms H?
• Chem is try

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More Atoms 500

• What is going on here, and why do we care about
  it when we turn on the TV?

Next
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Empirical Formulas 100

• This is the percent of oxygen in KMnO4.
• What is 40.5?
• Chem is try

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Empirical Formulas 200

• Free hydrgoen gas can be obtained from ethyl
  alcohol (C2H5OH). This many grams can be obtained
  from 150.0g of the alcohol,
• What are 19.6 g?
• Chem is try

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Empirical Formulas 300

• This is the empirical formula of Erythrose,
  C4H8O4.
• What is CH2O?
• Chem is try

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Empirical Formulas 400

• A sample of the mineral ore ilmenite contains
  5.41 g iron, 4.64 g titanium, and 4.65 g oxygen.
  This is the empirical formula of the ore.
• What is FeTiO3?
• Chem is try

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Empirical Formulas 500

• Analysis of 100g of Vitamin C (ascorbic acid)
  reveals that it has the following elemental
  composition 40.92 g C, 4.58 g H, and 54.50 g O.
  What is the empirical formula for Vitamin C?
• What is C3H4O3?
• Chem is try

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Stoichiometry 100

• This is the first step in any stoichiometry
  problem.
• What is balancing the equation?
• Chem is try

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Stoichiometry 200

• This is the balanced form of the following
  equation
• LiOH CO2 ? Li2CO3 H2O
• What is 2LiOH CO2 ? Li2CO3 H2O?
• Chem is try

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Stoichiometry 300

• 0.45 moles of nitrogen will react with this many
  moles of hydrogen in the following reaction,
  called the Haber Process
• N2 H2 ? NH3
• What are 1.35 moles H2?
• Chem is try

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Stoichiometry 400

• This many grams of carbon dioxide will form from
  the complete combustion of 25.0g butene, C4H10.
• What are _____ g?
• Chem is try

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Stoichiometry 500

• 2.2 x 109 kg of CO2 are produced annually. If
  you assume it all came from the combustion of
  gasoline (octane), this is how much octane
  combusted.
• What is a lot of octane?
• Chem is try

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Limiting Reagents 100

• Upon completion of the reaction below, this
  amount of the limiting reagent, B, will be left
  remaining
• A B ? C D
• What is none?
• Chem is try

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Limiting Reagents 200

• True or False the limiting reagent is always
  the reactant present in smaller amounts?
• What is false you must consider stoichiometry
  as well?
• Chem is try

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Limiting Reagents 300

• Magnesium and hydrochloric acid react as shown
  below. If you add a strip of Mg to a test tube of
  HCl and the metal completely disappears, this is
  the limiting reagent
• Mg HCl ? H2 MgCl2
• What is magnesium?
• Chem is try

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Limiting Reagents 400

• This is the mass of nitrogen dioxide that could
  be produced from the reaction of 30.0g of NO and
  30.0g of O2
• NO O2 ? NO2
• What are ______g NO2?
• Chem is try

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Limiting Reagents 500

• This is the mass of excess reagent left when
  100.0g glucose, C6H12O6, reacts with 180.0 g O2.
• What are ______g glucose?
• Chem is try

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Potpourri 100

• Grampa Simpsons new hybrid car now gets 4.17
  furlongs to the quart. This is the fuel
  efficiency of his car in kilometers per liter
  when 1 furlong 7920 in, 1 in 2.54 cm, 1 quart
  32 ounces, and 1 ounce 29.57 mL
• What is 0.889 km/L
• Chem is try

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Potpourri 200

• This element is formed when 235U gives off three
  alpha particles and later emits two beta
  particles (formed from the decomposition of a
  neutron into a proton and electron).
• What is 223Ra (radium)?
• Chem is try

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Potpourri 300

• In terms of the Bonds, James Bonds between
  atoms, explain where the heat produced in an
  exothermic reaction comes from.
• Products have lower Ep than reactants. Change in
  Ep is released as heat.
• Chem is try

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Potpourri 400

• Talk to me about GFP
• Green Fluorescent Protein. Research on it was
  awarded 2008 Nobel Prize. Useful for illuminating
  biological processes. Used as a protein tag.
• Chem is try

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Potpourri 500

• Thus conscience doth make _______ of us all.
• What are cowards?
• Chem is try

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More Atoms 500(b)
Chem is try
Why was JJ Thompson addicted to Laguna Beach?