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15
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The formula Ca(NO3)2 tells us that one formula unit of this compound is composed of __ calcium atoms, __ nitrogen atoms, and __ oxygen atoms.
two; two; six
one; two; six
one; two; five
one; one; six
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15
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The molecule SiCl4 has a ________ shape.
pyramidal
linear
tetrahedral
bent
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15
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Elements in Period 3 or below don't always "obey" the octet rule because they ____.
can use s and p orbitals for bonding.
cannot use d orbitals for bonding.
cannot use s orbitals for bonding.
can use s, p, and d orbitals for bonding.
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15
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What is the name of AlCl3?
aluminum(III) chloride
aluminum chloride
aluminum(III) trichloride
aluminum trichloride
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15
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The formula PO4^:3- means that this ion is composed of:
1 atom phosphorus, 4 atoms oxygen, and 3 electrons lost
4 atoms phosphorus, 4 atoms oxygen, and 3 extra electrons
1 atom phosphorus, 4 atoms oxygen, and 3 extra electrons
4 atom phosphorus, 4 atoms oxygen, and 3 electrons lost
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15
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The formula for ammonium hydroxide is ________.
NH4NO3
NH4O
NH4OH
OHNH4
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15
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The name of S^2- is _______.
sulfide ion.
sulfite ion.
sulfate ion.
sulfur.
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15
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The element least likely to obey the octet rule in forming chemical bonds is
boron
nitrogen
fluorine
carbon
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banana
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shark
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shark
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lifesaver
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seesaw
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gift
Win 15 points!
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thief
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