1. What is the oxidation number for each of the elements in Cu(NO3)2?

2. What is the oxidation number for each element in MgCr2O7?

3. The oxidation number of

a. any substance is the charge of the substance

b. an uncombined element is zero

c. hydrogen is +2 when combined with nonmetals

d. none of the above is correct

4. The oxidation numbers of ______ are equal to their ionic charges.

5. The term oxidation can be used to describe reactions in which

a. oxygen is removed from the reactants

b. oxygen is gained by the reactants

c. a substance loses one or more electrons

d. a substance gains one or more electrons

1. In Activity 2, there was 2 mL of buffer per well. Calculate the final pH of the undiluted buffer after 0.25 mL of 0.1 M NaOH are added. The Ka of CH3COOH = 1.8 × 10-5. Use the CH3COOH buffer concentration calculated in Data Table 2(1.1 M), a balanced CH3COOH + NaOH reaction equation, an ICE table, and a balanced dissociation equilibrium equation to help determine your pH. 2. What is the final pH of the second dilution after adding 1 drop of 0.1 M NaOH?

1. Write out Beer’s Law for a mixture of 2 analytes and define the variables

2. Why are 2 wavelength reading necessary?

3. Why is HCl added to the solutions?

4. Calculate the concentration when 10.0 mL of 0.10 M HCl is diluted to 100 mL.

5. Calculate the volume required to make your working standards.

Consider a bivariate normal distribution with ?1 = 10, ?2 = 15, ?11 = 2, ?22 = 3, ?12 = −0.75. Write out the bivariate normal density, ? (?, ?).

Round your answers to 3 significant digits

I need R code for this question, Thanks

1. History of the international financial system. 2. 2. Economics of the float and fixed exchange rate systems.

3. aspects of Bretton Woods Agreement.

4.Explain why and when the redemption of dollars in gold by the United States ended.

5. The functions (both from a critical and mainstream perspectives) of the international financial institutions

2.      In 1–2 well-developed paragraphs, discuss the Medical and WHO concepts of health.

Part 1. Describe the boundaries of the triangle with vertices (0, 0), (2, 0), and (2, 6). (a) Describe the boundary with the top function, bottom function, left point, and right point. (b) Describe the boundary with the left function, right function, bottom point, and top point.

Part 2. Consider the triangle with vertices (0, 0), (3, 0) and (6, 6). This triangle can be described using only one of the two perspectives presented above: top-bottom or left-right. Explain which perspective can be used and describe the region using that perspective. Write and label the boundary functions and points. If you want to use the other perspective, then you’ll have to split the shape into two different parts, each of which can be described using that perspective.

Part 3. Split the triangle in the previous exercise into two triangles. Describe each triangle as a region using the perspective you didn’t use in the previous exercise.

Consider a second price auction with 2 bidders, 1 and 2, who have values for the good of 20 and 80, respectively. Each knows what the other bidder’s valuation is so there is no uncertainty.

(a) Show that choosing a bid equal to one’s valuation is a weakly dominant strategy for bidder 1.

(b) Show that if each bidder plays a weakly dominant strategy, the bidder with the highest value always wins the good

(c) Is it a Nash equilibrium for bidder 1 to bid 60 and bidder 2 to bid 80? Which bidder is playing a weakly dominated strategy?

The values of X1, X2, X3, X4 and X5 are .1, .2, .08, .2 and .3. Explicate the meaning of those numbers for the Z score. What are the prospects of this firm? Discuss thoroughly.

7. An XYZ OCT 30 call option is trading at a premium of 2 and 1/2. If XYZ is trading at 28, the option at which two of the following properties?

1. An intrinsic value of 2
2. An Intrinsic value of 0
3. A time value of 1
4. A time value of 2 and 1/2.

1. I and II
2. I and III
3. II and III
4. II and IV

11. A customer who is losing an XYZ put may be intended to do which two of the following?

1. Profit from an increase in the market price of XYZ which he currently owns.
2. Hedge against a decrease in the market price of XYZ that he currently owns.
3. Profit from a decrease in the market price of XYZ, which he currently does not own.
4. Hedge against a decrease in the market price of XYZ

a. I and II

b. I and III

c. II and III

d. III and IV

17. Which of the following strategies has essentially the same profit diagram as a short stock?

           a. a long put, long stock

           b. a short put, long call

           c. a long put, short call

           d. a short stock, long call

           e. none of the above

22. Which of the following strategies has essentially the same profit diagram as a covered call?

a.         a long put

b.         a short put

c.         a long call

d.         a short stock

e.         none of the above