Water B 2 Flashcards pp.29-39

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Water B 2 Flashcardspp.29-39
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Refer to pg. 33 in the textbook for the Common
Ions chart to do some of these problems.
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Write a correct formula forCopper (II) sulfide
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CuS
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How many nitrogen atoms are on the reactant side
of this equation?N2 3 H2 ? 2 NH3
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two nitrogen atoms 2-Ns
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Write a correct formula forIron (III) selenate
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Fe2(SeO4)3
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Name FeS
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Iron (II) sulfide(Fe2 S-2)
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Write a correct formula forLead (II) hydroxide
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Pb(OH)2
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Do an atom inventory for this equation.2N2 5
O2 ? 2 N2O5
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Atoms Reactants Products 4-N 4-N 10-
O 10-O
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Name Ca(NO3) 2
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Calcium nitrate
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Do an molecule inventory for this equation.2N2
5 O2 ? 2 N2O5
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Moleculestwo-N2five-O2two-N2O5
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Name (NH4)2CO3
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Ammonium carbonate
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Give an example of an anion.
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-SO4-2, Cl-1, O-2, etc.
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Define what a product is.
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-material on the right side of the
equation-its what is being made in the
reaction
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Why was distilled water used as a control in the
Water Testing lab?
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-it was known not to contain any ions.-so we
could compare the tap water results to a
negative test.
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How many hydrogen molecules are on the reactant
side of this equation?N2 3 H2 ? 2 NH3
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Three hydrogen molecules3-H2
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Write a correct formula forNH4 and SO3
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(NH4 )2SO3
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Write a correct formula forAl and HCO3
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Al(HCO3 )3
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Name HgCl2
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Mercury (II) chloride(Hg2 Cl-)
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Name these elements and list how many of each
there are. NaHCO3
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Na-sodium-1H-hydrogen-1C-carbon-1O-oxygen-3
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Give an example of a cation.
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Fe3, Na1, Ca2, etc.
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Define what a reactant is.
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-it is the material on the left side of an
equation.-its the material you start with.
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Define ion.
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-a particle that has gained or lost an electron.
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Define precipitate.
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-a solid material that forms when two liquids are
mixed.-cloudiness in a liquid.
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List the ions that our tap water contains.
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-chlorine, Cl-1-sulfate, SO4-2
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List what we know so far in the Riverwood fish
kill.
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-water has been shut off-no microorganisms have
been identified-no toxins detected-all kinds of
fish found dead below the dam in the river