2. (20 pts) Match the chemical
equation with reaction type:
Single
Displacement, Double Displacement, Combination (Synthesis), or
Decomposition.
Cu(NO3)2(aq) +
2NaOH(aq) à Cu(OH)2(s) +
2NaNO3(aq)
______________________________
Cu(OH)2(s) à CuO(s) +
H2O(g)
______________________________
CuO(s) +
H2SO4(aq) à CuSO4(aq) +
H2O(l)
______________________________
CuSO4(aq) + Mg(s) à Cu(s)
+ MgSO4(aq)
______________________________
Mg(s) +
H2SO4(aq) à H2(g) +
MgSO4(aq)
______________________________
3. (20 pts) What mass of Cu metal is
required to react with 5.5 drops of 16M HNO3?
Assume...
Classify this reaction.s this a synthesis,
decomposition, single displacement or double displacement
reaction?Acid Base? Redox? How do you know this?
Equation for chemiluminescence:
2K₃[Fe(CN)₆] + 2KOH + H₂O₂ → 2K₄[Fe(CN)₆] + 2H₂O + O₂
There is only an Experiment 1 in this lab.
Experiment 1: Double Replacement Precipitation Reaction
between Calcium Chloride and Sodium Carbonate
In this experiment you will precipitate calcium
carbonate from the reaction between sodium carbonate and calcium
chloride. The reaction is:
Procedure
Place a weigh boat on the scale. Once you have the mass
of your weigh boat, press the button on the right hand side (0/T).
Your scale should now read 0.0 g.Use your metal
spatula to weigh out...
you wish to detemine the reaction order and rate constant for
the following thermal decomposition reaction 2AB2- -> A2 + 2B2
A) what data wolud you collect? B) how would you use this data to
determine whether the reaction is zero, first or second order ? C)
Describe how you would determin the value of the rate
constant?
1. What type of reaction is the following? Also use the
solubility rules to identify whether AgCl or NaNO3 is the
precipitate formed. AgNO3 (aq) + NaCl (aq) → AgCl + NaNO3
Identify each of the following unbalanced reaction equations as
belonging to one or more of the following categories:
precipitation, oxidation-reduction or acid-base.
a. K2SO4(aq)+Ba(NO3)2(aq)-> BaSO4(s)+KNO3(aq)
b. HCl(aq)+Zn(s)-> H2(g)+ZnCl4(aq)
c. HCl(aq)+AgNO3(aq)-> HNO3(aq)+AgCl(s)
d. HCl(aq)+KOH(aq)-> H2O(l)+KCl(aq)
e. Zn(s)+CuSO(aq)-> ZnSO(aq)+Cu(s)
f. NaH2PO4(aq)+NaOH(aq)-> Na3PO4(aq) +H2O(l)
g. Ca(OH)2(aq)+ H2SO4(aq)-> CaSO4(s)+H2O(l)
h. ZnCl2(aq)+Mg(s)-> Zn(s)+MgCl2(aq)
i. BaCl2(aq)+H2SO4(aq)->BaSO4(s)+HCl(aq)
Required Identify each of the following events as an accrual, a deferral, or neither Type of Accounting Events EventsType of Accountinga.Paid cash in advance for a one-year insurance policy.b.Paid cash to settle an account payable.c.Collected accounts receivable.d.Paid cash for current salaries expense.e.Paid cash to purchase supplies.f.Provided services on account.g.Provided services and collected cash.h.Paid cash to purchase land.i.Recognized accrued salaries at the end of the accounting period.J.Paid a cash dividend to the stockholders.kRecognized revenue on account at the end of the period.l.Collected cash...
1 For each of the following variables, identify the type of
variable (numeric or categorical) and level of measurement
(nominal, ordinal, interval, or ratio). a. Business size (micro,
small, medium, large) b. Airplane ticket price
2 Consider the following sample of data: 1.2 28.4 32.6 17.0 13.5
2.2 38.0 41.4 1.9 14.4 21.8 23.8 a. Calculate the quartiles. b.
Calculate the average c. Calculate the standard deviation.
3 Given the following five-number summary, are there
any outliers in the data? Min:...
Question 33
For each of the following situations, identify the type of
change, and whether the change (or correction) should be made
prospectively or retrospectively.
Type of
Change
Change (or
correction)
to be Made
(a)
When the company purchased its equipment, it estimated that the
equipment would have a useful life of ten years. Now, eight years
later, it appears that the equipment will be useful for an
additional five years from the current date.
Correction of a Prior Period...