Water B 2 Flashcards pp.29-39
Jan 13, 2016
Water B 2 Flashcardspp.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?
N2 + 3 H2 2 NH3
two nitrogen atoms;2-N’s
Write a correct formula for:
Iron (III) selenate
Fe2(SeO4)3
Name: FeS
Iron (II) sulfide
(Fe+2 S-2)
Write a correct formula for:
Lead (II) hydroxide
Pb(OH)2
Do an atom inventory for this equation.
2N2 + 5 O2 2 N2O5
Atoms:
Reactants Products4-N 4-N
10-O 10-O
Name: Ca(NO3) 2
Calcium nitrate
Do an molecule inventory for this equation.
2N2 + 5 O2 2 N2O5
Molecules:
two-N2
five-O2
two-N2O5
Name: (NH4)2CO3
Ammonium carbonate
Give an example of an anion.
-SO4-2, Cl-1, O-2, etc.
Define what a product is.
-material on the right side of the equation-it’s what is being “made” in the reaction
Why was distilled water used as a control in the Water Testing lab?
-it was known not to contain any ions.-so we could compare the tap water results to a negative test.
How many hydrogen molecules are on the reactant side of this equation?
N2 + 3 H2 2 NH3
Three hydrogen molecules;
3-H2
Write a correct formula for:
NH4 and SO3
(NH4 )2SO3
Write a correct formula for:
Al and HCO3
Al(HCO3 )3
Name: HgCl2
Mercury (II) chloride
(Hg+2 Cl-)
Name these elements and list how many of each there are.
NaHCO3
Na-sodium-1
H-hydrogen-1
C-carbon-1
O-oxygen-3
Give an example of a cation.
Fe+3, Na+1, Ca+2, etc.
Define what a reactant is.
-it is the material on the left side of an equation.
-it’s the material you start with.
Define ion.
-a particle that has gained or lost an electron.
Define precipitate.
-a solid material that forms when two liquids are mixed.
-cloudiness in a liquid.
List the ions that our tap water contains.
-chlorine, Cl-1
-sulfate, SO4-2
List what we know so far in the Riverwood fish kill.
-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