For each chemical reaction or physical change, record your observations (i.e. color changes, a ppt or solid formation, gas bubbles/odors, heat production, etc.). Observations should be detailed descriptions of WHAT you see, hear, smell, and feel. Recording a (+/–) is NOT an observation!

Short Answers:

1. Zn/HCl (single displacement) OBSERVATIONS:

2. NaHCO3/HCl (double displacement) OBSERVATIONS:

3. Sugar (C12H22O11) (decomposition) OBSERVATIONS:

4.CuSO4•5H2O (decomposition) OBSERVATIONS:

5. Fe/CuSO4 (single displacement) OBSERVATIONS:

6. NH3/HCl (combination) OBSERVATIONS:

7. Cu/HCl and Al/HCl (single displacement) OBSERVATIONS (for BOTH):

8. K2SO4/Ba(NO3)2 (double displacement) OBSERVATIONS:

9. NaOH/HCl (double displacement) OBSERVATIONS:

QUESTIONS:

1. Which procedure(s) [#1 – #9] were NOT chemical reaction(s) as predicted above (there are two!)? Write the reaction(s) including physical states. How were you able to determine this (i.e. one is a physical change and one procedure did not react = no reaction)?

2. Which procedure(s) [#1 – #9] produced water(g) vapor (there are two possibilities!)? Write the reaction(s) including physical states. Which procedure resulted in a physical change?

3. Which procedure(s) [#1 – #9] produced a gas other than water(g) vapor (there are three!)? Write the reaction(s) including physical states. 4

. Which procedure(s) [#1 – #9] produced a solid from two non-solids (there are two!)? Write the reaction(s) including physical states.

5. Which procedure(s) [#1 – #9] produced heat (there is one!)? Write the reaction including physical states. 1/25/2018 9/9

6. Which procedure(s) [#1 – #9] produced copper metal (there is one!)? Write the reaction including physical states.

7. What is the difference between the denotations (aq) and (l)? Give a specific example of each one.

1. What sorts of mutational changes could occur in a gene for a cyclin-dependent kinase might lead to a cell becoming cancerous? Be as specific as you can as to what effect the mutational change would have on the kinase protein.

A spectrophotometer measures changes in absorbance of light over time. Species X has a molar absorptivity constant of 5.00x10^3cmM and the path of the cuvet that holds the mixture is 1.00 cm. Species X, a colored reactant, undergoes a first order decomposition reaction to form a colorless product. See data below.

a. Calculate the initial concentration of the colored species

b. Using the values given for concentration and time, calculate the rate constant for the first order reaction, include units

c. How many minutes would it take for the absorbance to drop from 0.600 to 0.075

d. What is the half life of the reaction? Include units.

e. The rate constant for this reaction was calculated at various temperatures. Using this data, the graph (to the right) was produced. T stands for temperature.

i.) Label the vertical axis of the graph.

ii.) Explain how you would use this graph to calculate the activation energy.

*Graph is a basic quadrant 1, x-y graph, where the x-axis is labeled (1/T) and the y-axis isn't labeled, a straight line goes down from left to right

Thank you so much for your help, it's an AP Chemistry Ch. 12 FRQ Question and I don't know how to solve it.

Describe the changes in clotting and bleeding balance during disseminated intravascular coagulation (DIC).

Describe the most important blood coagulation tests used to monitor the patients receiving heparin and warfarin

What would the following changes to the federal taxation system have on income inequality:

3.Increase the federal payroll tax paid by employers by 1 percentage point for any worker the employer pays more than $200,000 in a calendar year.

3.- ENTROPY EXERCISES.
From the absolute entropy values calculate the standard entropy changes (ΔS °) of the following reactions at 25 C

a.-                               CaCO_3(s) →→→ CaO _(s)     + CO_2(g)

b.-                               N_2(g)   +      3H_2(g)      →→→    2NH_3(g)

c.-                               H_2(g)     +     Cl_2(g)   →→→   2HCl _(g)

TABLE OF VALUES OF STANDARD ENTROPY (S °):

1-Demonstrate how the spectral emissive power inside a blackbody cavity changes with respect to the
following parameters:
a) Temperature and wavelength, hence, find E?(?, T), by:
(i) Creating a table with the (?, T) values as follows:
1. Wavelengths, ?, from 0.1 ?m to 100 ?m, on the first (left-most) column. Use increments
of:
? 0.1 ?m from 0.1 ?m to 1.0 ?m;
? 0.5 ?m from 1.0 ?m to 10 ?m;
? 1.0 ?m from 10 ?m to 100 ?m;
2. Temperatures, T, values of: 273.15 K; 773.15 K; 1273.15 K; 1773.15 K; 2273.15 K; 5000
K; and, 10000 K.
3. Calculate E?(?, T) using units of W/m2·?m and assume the constants C1 = 374210000
and C2 = 14388.
Set up your table with each separate column corresponding to each given value of T.
Ensure that you clearly label each column in your table and include the relevant units.
[Hint: There should be seven separate columns in your table for the E?(?, T) calculations
and eight columns in your table altogether with the inclusion of the left-most column
consisting of the ? values.
The recommendation is that you fill in each separate column in your table using a
different background colour in order to facilitate the examination of the different T
calculations and to assist in identifying the corresponding plots.]
4. Clearly demarcate the visible region in your table. You may do this by selecting a
different coloured font for the values of ? (and the corresponding E? values) that fall
within this region.
(ii) Plot the calculated values of E?(?, T) ensuring that you set out each plot as follows:
1. Display the calculated E?(?, T) values on the vertical axis.
2. Display the wavelengths on the horizontal axis. Select the logarithmic scale, to base 10,
to display your values on this axis.
3. Clearly demarcate the visible region in each plot.
4. Include a title in each plot, clearly identifying the relevant value of T and ensure that you
label both axes (including units).
[Hint: The recommendation is that you fill in the background of each plot in the same
colour as the corresponding column in your table in order to facilitate the analyses of
the different T calculations.]

1. The following problem has you examine the impact of interest rate changes on bank profits using basic gap analysis.

   Assume that the amount of variable- and fixed-rate assets and liabilities is fixed over the next year. In other words, no assets or liabilities will mature during this period. For each part, be sure to give a numerical answer.

   1. Suppose a bank has $70M in variable-rate assets and $120M in variable-rate liabilities. What is the impact on the bank’s profits of a 1.5% increase in interest rates?

   2. If the bank has $200M in assets, what is the impact on the return on assets (ROA)?

   3. If the bank has $200M in assets and an capital of $15M, what is the impact on the

      return on equity (ROE)?

Use the dynamic AD-AS model to explain circumstances by which productivity and technological changes can lead to an increase in unemployment. Discuss what happens to the price level depending on the assumptions you make.(please explain in detail)

1. what are the common age-related changes of respiratory system in older adult?
2. In selected respiratory conditions: Give nursing management and medication.
a. Chronic Obstructive Pulmonary Disease
b. Lung cancer
c. Pneumonia
3. What self-imposed and environmentally imposed risks to younger adults can contribute to the development of respiratory conditions in later life?