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39 Cards in this Set
- Front
- Back
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Theformula given above is representative of a(n) ____________.
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MolecularCompound
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Theformula given above would be named ___________.
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sulfurhexafluoride
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Themolar mass of SF6 is ______________.
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146.1g/mol
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What’sthe charge of the F ion in the molecule given in problem 3?
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+1
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Basedon its position on the periodic table, S is representative of a(n):
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nonmetal
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Theformula given above is representative of a(n) ____________.
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IonicCompound
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Themolar mass of MnO4 is ______________.
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118.9g/mol
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Asample of 2.0 mol of MnO4 would contain _________ moles of fluorineatoms
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Noneof the above
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Thecharge on the manganese in MnO4 means it is an ion that is short on _____________, giving it a ___________ charge.
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electrons,positive
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____C6H12+ ____O2 è ____H2O + ____CO2
Afterbalancing, the proper coefficient for water should be: |
6
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____C6H12+ ____O2 è ____H2O + ____CO2
Thereaction above is a _________________ reaction. |
combustion
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____H2O+ ____O2 è ____H2O2
Afterbalancing the reaction above, the sum of all of the coefficients is: |
5
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____H2O+ ____O2 è ____H2O2
Thereaction above is a _________________ reaction. |
combination
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Asample of 144 grams of oxygen gas, O2, is equivalent to ___________moles of O2 gas molecules.
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4.5
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Converting 1.5055x1023 moleculesof PCl3, to totalnumber of atoms gives ____________ atoms
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6.022x1023
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Themass of 1.5055x1023 ethane (C2H6) moleculesweighs roughly 15 grams.
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FALSE |
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Thename of the formula SrCl2 is:
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Strontiumdichloride
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NH3is commonly known as:
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Ammonia
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Thename of the polyatomic ion ClO4- is chlorate
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FALSE
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If 3g of hydrogen gas, H2, fully reacts, how much ammonia will beproduced?
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1.0mol
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When5 mol of ammonia is formed, how much nitrogen gas, N2, must havereacted, in moles?
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2.5mol
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If 6.0 mol of each reactant is introduced into the reaction, how much of theproduct will be made?(Hint: This is a limiting reactant problem)
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4.0mol
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Whichreactant was not completely consumed in the reaction described in problem 22?
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H2
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Thelimiting reactant is whichever reactant you have the least of when you starta reaction.
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FALSE |
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Ifno charge is indicated on an ionic compound, its charge is +1
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FALSE |
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Howmany total valence electrons should be in the lewis structure for Cl2O?
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20
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Writethe proper lewis structure in the box given on your answer sheet for Cl2O.
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O Cl Cl |
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Whatis the formal charge on the oxygen in the Lewis structure for Cl2Othat you drew in the box?
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0
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Bonus: Green tea has 20 milligrams of caffeine, C8H10N4O2, perstandard 6 oz. cup. How many molecules of caffeine are in one 6 oz.cup of green tea? (Assume mass of C is 12.0 g/mol, H is 1.0 g/mol, N is 14.0 g/mol, and Ois 16.0 g/mol, and also you’re given Avogadro’s number = 6.022x1023items in one mol) Write your answer inthe space below:
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.020g = 1 mol * 6.022 e23 = 6.21*1019 194g 1 mol |
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Na(OH)
The formula given above isrepresentative of a(n) ____________. |
IonicCompound
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Na(OH)
Theformula given above would be named ___________. |
Sodiumhydroxide
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Na(OH)
Themolar mass of Na(OH) is ______________. |
40.0g/mol
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Na(OH)
What’sthe charge of the sodium ion in the formula above? |
+1 or Thecompound isn’t ionic!
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Na(OH)
Thefirst element in the formula above is a ___________ which means it has a_______ charge. |
cation,positive
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NO2
Theformula given above is representative of a ____________. |
MolecularCompound
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NO2
Themolar mass of NO2 is ______________. |
46g/mol
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Nand O, based on their position on the periodic table, are both examples of:
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nonmetals
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____C4H8+ ____H2 è ____ C4H10
After balancing, the propercoefficient for diatomic hydrogen, H2, should be: |
1
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Converting1.5055x1023 molecules of CO, to totalnumber of atoms gives ____________ atoms
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3.011x1023
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