Write a program that asks the user to enter a sentence and then switch all lower case letters to capitals and all upper case letters to lower. HINT: use the ASC function to tell your program which letters are upper or lower case so you can switch them. Your program should allow for multiple test cases.

1. in redox reactions, what always happens to oxidizing agents?

2. what is the diinition of a physical property, and how it is used?

3.what is the definition of a chemical reaction, and how is it used?

4. if you are given an unknow liquid that can be either water or hydrocarbon, and the sample is clear, no color, and has no odor. what test would you use for it chemical or physical (and what will you see in the test to prove of support this answer)?

The solubility of CdCO_3(s) in 0.500 M KI_(aq) is 3.0x10^-4 M. Given the K_f for [CdI₄]^2- is 2.8x10⁵ , what is the K_sp for CdCO₃?

Calculate the approximate modified duration for a 10-year, 5% annual-pay bond priced at 106.84307 percent of par for a 5 basis point change in the yield to maturity. Group of answer choices

A. 7.602

B. 7.981

C. 7.853

A 6month infant has hepatosplenomegaly, failure to thrive, musclc weakncss, hypotonia, decreased deep tendon reflex. Lab result.normal blood glucose. Liver biopsy:(+) initial stage of cirrhosis due to accumulation of an abnormal glycogen that has few branchpoints. Clinical picture and labs are consistent with which type of glycogen storage discasc (GSD)? explain the reason also

A firm faces the following costs: total cost of capital = $2,000; price paid for labor = $12 per labor unit; and price paid for raw materials = $4 per raw-material unit.

Instructions: In parts a and b, round your answers to 2 decimal places. In part c, enter your answer as a whole number.

a. Suppose the firm can produce 6,000 units of output this year by combining its fixed capital with 100 units of labor and 450 units of raw materials. What are the total cost and average total cost of producing the 6,000 units of output?

TC=

ATC=

b. Now assume the firm improves its production process so that it can produce 7,000 units of output this year by combining its fixed capital with 100 units of labor and 450 units of raw materials. What are the total cost and average total cost of producing the 7,000 units of output?

TC=

ATC=

c. If units of output can always be sold for $1 each, then by how much does the firm’s profit increase after it improves its production process?

2-Give recipe example for electroplating Cu, Au, and Ni. Explain how to prepare the electroplating solution.

Discuss the importance of having comparable populations underlying comparisons of experimental and non-experimental estimates.

A simple generator has a square armature 7.0cm on a side. The armature has 95 turns of 0.59-mm-diameter copper wire and rotates in a 0.800-T magnetic field. The generator is used to power a lightbulb rated at 12.0 V and 25.0 W. At what rate should the generator rotate to provide 12.0 V to the bulb? Consider the resistance of the wire on the armature.

Find the critical value of t for each of the following:

Please show work and explain.

a. 1-α = 0.95, n=21

b. 1-α = 0.99, n=21

c. 1-α = 0.90, n=32

d. 1-α = 0.99, n=65

Consider the work-energy theorem relating work done on an object and its change in kinetic energy. What is the formula? Explain in your own words what this formula gives you. Create an example. Include a graphical or picture representation that illustrates what all the variables are. Then exemplify the use of the formula with a simple problem of your own creation. The problem should be stated in words first. Every variable should have a well defined value with appropriate units. Finally, solve your problem.
( please show image and explain clearly)

1)

Which of the following solutions is a good buffer system?

Which of the following solutions is a good buffer system?

	A solution that is 0.10 M HCN and 0.10 M LiCN
	A solution that is 0.10 M NaCl and 0.10 M HCl
	A solution that is 0.10 M KOH and 0.10 M HNO3
	A solution that is 0.10 M HNO3 and 0.10 M KNO3
	A solution that is 0.10 M HCN and 0.10 M Na Cl 2) Calculate the pH of the solution that results from each of the following mixtures. Part A 55.0 mL of 0.17 M HCHO2 with 70.0 mL of 0.13 M NaCHO2 Express your answer using two decimal places. Part B 115.0 mL of 0.11 M NH3 with 250.0 mL of 0.11 M NH4Cl Express your answer using two decimal places. 3) A 1.0-L buffer solution is 0.125 M in HNO2 and 0.180 M in NaNO2. Part A Determine the concentrations of HNO2 and NaNO2 after addition of 1.5 g HCl. Express your answers using three significant figures separated by a comma. Part B Determine the concentrations of HNO2 and NaNO2 after addition of 1.5 g NaOH. Express your answers using three significant figures separated by a comma. Part C Determine the concentrations of HNO2 and NaNO2 after addition of 1.5 g HI. Express your answers using three significant figures separated by a comma. 4) A ligand is a molecule or ion that acts as a A ligand is a molecule or ion that acts as a Lewis acid Arrhenius base conjugate base Brønsted-Lowry base Lewis base 5)A buffer contains significant amounts of acetic acid and sodium acetate. Part A Write an equation showing how this buffer neutralizes added acid (HCl). Express your answer as a chemical equation. Part B Write an equation showing how this buffer neutralizes added base (Ca(OH)2). Express your answer as a chemical equation. 6) When titrating a monoprotic strong acid with a weak base at 25°C, the When titrating a monoprotic strong acid with a weak base at 25°C, the pH will be 7 at the equivalence point. titration will require more moles of the base than acid to reach the equivalence point. pH will be less than 7 at the equivalence point. titration will require more moles of acid than base to reach the equivalence point. pH will be greater than 7 at the equivalence point.

1. What consumer market segments does Motel 6 serve?
2. What business market segments does Motel 6 try to reach?
3. Do you think the Motel 6 advertising approach is still effective?
4. What specific digital marketing/social media details should Motel 6 use and why?
5. What "alternative" marketing ideas do you have for Motel 6?

A person walks into a room and switches on the ceiling fan. The fan accelerates with constant angular acceleration for 18s until it reaches its operating angular speed of 2.0rotations/s - after that its speed remains constant as long as the switch is "on". The person stays in the room for a short time; then, 5.5 minutes after turning the fan on, she switches it off again and leaves the room. The fan now decelerates with constant angular acceleration, taking 2.4 minutes to come to rest.

What is the total number of revolutions made by the fan, from the time it was turned on until the time it stopped?

Express your answer using two significant figures.