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POWERPOINT JEOPARDY

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What is the mass of this sample? Answer 2 30 1.522 g Na2B4O7 Question 2 ... POWERPOINT JEOPARDY Subject: Jeopardy Template Author: Educational Technology Network – PowerPoint PPT presentation

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Title: POWERPOINT JEOPARDY


1
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Reactions Weights Chemistry More Chemistry Movie Trivia
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50 50 50 50 50
3
Question 1 - 10
  • Balance the following equation
  • SF4(g) H2O(l) ? SO2(g) HF(g)

4
Answer 1 10
SF4(g) 2H2O(l) ? SO2(g) 4HF(g)
5
Question 1 - 20
  • Write the balanced equation for the combustion of
    butane in air.

6
Answer 1 20
  • 2C4H10(g) 13O2(g) ? 8CO2(g) 10H2O(l)

7
Question 1 - 30
  • Write a balanced equation for the following
    reaction.
  • Solid potassium chlorate decomposes to solid
    potassium chloride and oxygen gas

8
Answer 1 30
  • 2KClO3(s) ? 2KCl(s) 3O2(g)

9
Question 1 - 40
  • Which of the following equations does not obey
    the law of conservation of mass?
  • a. C6H12O6 6O2 ? 6CO2 6H2O
  • b. C2H6 7O2 ? 4CO2 6 H2O
  • c. BCl3 H2O ? H3BO3 3HCl

10
Answer 1 40
  • B C
  • b. C2H6 7O2 ? 4CO2 6 H2O
  • c. BCl3 H2O ? H3BO3 3HCl

11
Question 1 - 50
  • What is the coefficient in front of CO2 when the
    following chemical equation is balanced?
  • C3H7OH(l) O2(g) ? CO2(g) H2O(l)

12
Answer 1 50
  • 6
  • 2C3H7OH(l) 9O2(g) ? 6CO2(g) 8H2O(l)

13
Question 2 - 10
  • What is the difference between formula and
    molecular weights?

14
Answer 2 10
  • Formula Weight sum of atomic weights of the
    atoms in a substance. It can be used with both
    molecular and ionic substances.
  • Molecular Weight sum of atomic weights of the
    atoms in a molecular substance.

15
Question 2 - 20
  • Calculate the molecular or formula weights for
  • NO3-
  • C21H30O2

16
Answer 2 20
  • 62.01 amu
  • 314.51 amu

17
Question 2 - 30
  • A sample of Na2B4O7 contains 0.3478 g of sodium.
    What is the mass of this sample?

18
Answer 2 30
  • 1.522 g Na2B4O7

19
Question 2 - 40
  • What is the weight percentage of Al in Al2O3?

20
Answer 2 40
  • 52.92

21
Question 2 - 50
  • Answer the following with respect to C2H6O
  • What is its molecular weight?
  • What is the mass of 1 mol of ethanol molecules?
  • Calculate the number of moles of ethanol in 1.00
    g.
  • Calculate the number of molecules in 1.00 g.
  • Calculate the percentage of carbon in one
    molecule.

22
Answer 2 50
  • 46.08 amu
  • 46.08 g
  • 0.0217 mol ethanol
  • 1.31 x 1022 molecules ethanol
  • 52.13

23
Question 3 - 10
  • How many moles of Al2O3 are prodcued when 0.50
    mol Al reacts with an excess of PbO2?
  • 4Al(s) 3PbO2(s) ? 2Al2O3(s) 3Pb(s)

24
Answer 3 10
  • 0.25 mol Al2O3

25
Question 3 - 20
  • A compound contains only Al and O. Its elemental
    composition is determined to be 53.0 Al and
    47.0 O. The mass of one mole is 102g.
  • What is the empirical formula?
  • What is the molecular formula?

26
Answer 3 20
  • Empirical Al2O3
  • Molecular Al2O3

27
Question 3 - 30
  • How many grams of HI are required to form 1.20
    moles of H2 when HI reacts according to the
    following balanced chemical equation?
  • 2HI(g) ? H2(g) I2(g)

28
Answer 3 30
  • 301 g HI

29
Question 3 - 40
  • Determine how many grams of PCl3 are produced
    when 2.80 g of Cl2 reacts with a suffiecient
    quatity of P4 according the the following
    chemical equation.
  • P4(s) 6 Cl2(g) ? 4 PCl3(l)

30
Answer 3 40
  • 3.62 g PCl3

31
Question 3 - 50
  • Ethylene, C2H4, is used to make the plastic
    polyethylene.
  • a. What are its molecular weight and formula
    weight?
  • b. How many moles of C2H4 are there in 3.2 x
    10-2g?
  • c. How many molecules of C2H4 are there in
  • 3.2 x 10-2g?

32
Answer 3 50
  • a. 28.04 amu
  • b. 1.14 x 10-3 mol C2H4
  • c. 6.87 x 1020 molecules C2H4

33
Question 4 - 10
  • What is the limiting reactant when 10.0 g of C2H6
    reacts with 50.0 g of O2 according to the
    following chemical equation?
  • 2C2H6(g) 7O2(g) ? 4CO2(g) 6H2O(l)

34
Answer 4 10
  • C2H6 is the limiting reactant

35
Question 4 - 20
  • Calculate the percent yield of the reaction
  • 2Al(OH)3(s) 3H2SO4(aq) ? Al2(SO4)3(s) 6H2O
  • Given that 205 g of Al(OH)3 reacts with 751 g of
    H2SO4 to yeild 252 g of Al2(SO4)3

36
Answer 4 20
  • Percent yield 56.0

37
Question 4 - 30
  • Caffeine containes the following weight
    percentage of elements
  • C 49.5
  • N 28.9
  • O 16.5
  • H 5.2
  • What is the empirical formula of caffeine?

38
Answer 4 30
  • C4H5N2O

39
Question 4 - 40
  • The reaction for the production of Fe from the
    reduction of Fe2O3 is
  • Fe2O3 3 CO ? 2 Fe 3 CO2
  • a. If the reaction yields 4.52 g of CO2, how many
    grams of Fe are formed?
  • b. How many grams of Fe are formed from 7.25 g of
    Fe2O3 and 6.00 g of CO?

40
Answer 4 40
  • a. 3.82 g Fe
  • b. 5.07 g Fe

41
Question 4 - 50
  • SiO2 3C ? SiC 2CO
  • a. Calculate the number of moles of silicon
    carbide formed when 5.00 g of carbon reacts with
    an excess of SiO2.
  • b. What is the minimum amount of carbon required
    to react with 25.0 g of SiO2?

42
Answer 4 50
  • a. 0.139 mol SiC
  • b. 14.99 g C

43
Question 5 - 10
  • Which movie is the famous quote from and what
    year did it come out?
  • "I'll get you, my pretty, and your little dog
    too!"

44
Answer 5 10
  • The Wizard of Oz
  • -1939

45
Question 5 - 20
  • In the Harry Potter series, who sings "I killed
    Sirius Black" to infuriate Harry?

46
Answer 5 20
  • Bellatrix Lestrange

47
Question 5 - 30
  • Name all seven dwarfs from Snow White

48
Answer 5 30
  • Sleepy
  • Sneezy
  • Dopey
  • Grumpy
  • Happy
  • Doc
  • Bashful

49
Question 5 - 40
  • In the movie "The Karate Kid", what is the name
    of Daniel's master?

50
Answer 5 40
  • Mr. Miyagi

51
Question 5 - 50
  • In which movie franchise did the director first
    plan for the main character as well as his family
    to be dwarfs?

52
Answer 5 50
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