water b 2 flashcards pp.29-39
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Water B 2 Flashcards pp.29-39. Refer to pg. 33 in the textbook for the Common Ions chart to do some of these problems. Write a correct formula for: Copper (II) sulfide. CuS. How many nitrogen atoms are on the reactant side of this equation? N 2 + 3 H 2 2 NH 3. - PowerPoint PPT PresentationTRANSCRIPT
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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 for:
Copper (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-N’s
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Write a correct formula for:
Iron (III) selenate
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Fe2(SeO4)3
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Name: FeS
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Iron (II) sulfide
(Fe+2 S-2)
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Write a correct formula for:
Lead (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 Products4-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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Molecules:
two-N2
five-O2
two-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-it’s 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 molecules;
3-H2
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Write a correct formula for:
NH4 and SO3
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(NH4 )2SO3
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Write a correct formula for:
Al and HCO3
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Al(HCO3 )3
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Name: HgCl2
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Mercury (II) chloride
(Hg+2 Cl-)
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Name these elements and list how many of each there are.
NaHCO3
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Na-sodium-1
H-hydrogen-1
C-carbon-1
O-oxygen-3
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Give an example of a cation.
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Fe+3, Na+1, Ca+2, 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.
-it’s 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