1.why is it that ammonia can solvate the electron given by Na? how does it do this.

2. why is it that Na is explosive with water but not in ethanol when in both solvents the product is hydrogen?

3. Why cant ethanol or whatever solvate the electron like ammonia does?

please give a detailed explanation.

As an electron moves in the direction of the electric field lines...

Answer: It is moving from high potential to low potential and gaining electric potential energy.

Can someone explain why the electron is gaining electric potential energy if it is moving from high to low potential energy?

Vitex, Inc. manufactures a popular consumer product and it has provided the following data excerpts from its standard cost system: Inputs (1) Standard Quantity or Hours (2) Standard Price or Rate Standard Cost (1) × (2) Direct materials 2.30 pounds $ 16.30 per pound $ 37.49 Direct labor 1.00 hours $ 15.30 per hour $ 15.30 Variable manufacturing overhead 1.00 hours $ 9.20 per hour $ 9.20 Total standard cost per unit $ 61.99 Total Variances Reported Standard Cost* Price or Rate Quantity or Efficiency Direct materials $ 637,330 $ 11,919 F $ 32,600 U Direct labor $ 260,100 $ 3,600 U $ 15,300 U Variable manufacturing overhead $ 156,400 $ 4,400 F $ ?† U *Applied to Work in Process during the period. The company's manufacturing overhead cost is applied to production on the basis of direct labor-hours. All of the materials purchased during the period were used in production. Work in process inventories are insignificant and can be ignored. Required: 1. How many units were produced last period? 2. How many pounds of direct material were purchased and used in production? 3. What was the actual cost per pound of material? (Round your answer to 2 decimal places.) 4. How many actual direct labor-hours were worked during the period? 5. What was the actual rate paid per direct labor-hour? (Round your answer to 2 decimal places.) 6. How much actual variable manufacturing overhead cost was incurred during the period?

hat is the relationship between diabetes, glucose in food, saliva, microvilli, blood transport of glucose, beta cells of pancreas, diabetes- elevated blood glucose, glomerulus, glucose in urine? Major emphasis on RELATIONSHIP

What is the ratio of the mass of fresh water produced to the mass of water in the incoming brine?Multi-stage flash distillation is used to desalinate seawater so it is fit for human consumption. A flash distillation tank is composed of small chambers (called \"stages\"), each at a lower pressure than the previous stage. Salt water enters the first chamber, some fresh water flash evaporates, condenses, and is removed from the distillation tank. The remaining salt water moves to the next chamber, some fresh water flash evaporates, condenses, and is removed from the distillation tank. The remaining salt water moves to the next chamber, and the process repeats until very salty water is expelled as waste. Brine that is 35,000 ppm salt is desalinated through a 5-stage flash distillation process. The pressure in the stages is such that 8.5% by mass of the water entering the stage evaporates and leaves as fresh water. If the desalination plant wants to produce 1200.0 gallons of drinking water per day, how many gallons of brine must the plant take in per day? The density of fresh water is 1.000 g/cm3. The density of brine is 1.025 g/cm3.

What mass of waste brine is expelled in one day?

What is the ratio of the mass of fresh water produced to the mass of water in the incoming brine?

The larger this ratio is, the more fresh water is produced for the given incoming water. If additional stages are added, each removing 8.5% of the available incoming water, so that the above ratio gets above 0.5, what are the total number of stages in the multi-stage flash distillation tank? (respond with a whole number)

The energy requirement of this type of desalination plant is 25.5 kW·h/m3 of fresh water. How much energy does the plant require to produce 1200.0 gallons of fresh water?

As auditor for Checkem & Associates, you have been assigned to review Cullumber Corporation’s calculation of earnings per share for the current year. The controller, Mac Taylor, has supplied you with the following calculations:

Net income $3,538,109

Common shares issued and outstanding:

Beginning of year 1,374,960

End of year 1,200,000

Average 1,242,500

Earnings per share: $3,374,960/1,242,500= $2.72 per share

You have gathered the following additional information:

1. The only equity securities are the common shares.

2. There are no options or warrants outstanding to purchase common shares.

3. There are no convertible debt securities.

4. Activity in common shares during the year was as follows:

Outstanding, Jan. 1 1,285,000

Shares acquired, Oct. 1 (250,000)

1,035,000

Shares issued, Dec. 1 165,000

Outstanding, Dec. 1,200,000

Instructions

a) Based on the information, of you agree with the controllers calculation of earnings per share for the year? If disagree, provide revised calculation

b) Assume the same facts except that call options had also been issued for 140,000 common shares at $10 per share. These options were outstanding at the beginning of the year and none had been exercised or cancelled during the year. the average market price of the common shares during the year was $20 and the ending market price was $25. prepare a calculation of earnings per share.

6. A calculated correlation coefficient of 0.99 between variables A and B implies that variable A causes variable B.

7. Which of the following is NOT a possible value for a calculated F statistic?

8. A large student organization at CSUN claims it has an equal distribution of people from each of the 9 colleges (e.g., business, humanities). You are interested in investigating whether or not this claim is accurate. To do so, you first take a sample of students from the organization. What would be the most appropriate test to utilize with your sample data to help answer this research question?

9. You are presented with 4 different correlation coefficients (r): 0.65, -0.34, -0.86, and 0.19. Which of the following lists correctly represents the 4 r’s placed in order of strength from weakest to strongest.

10.

In which direction is the χ² (chi-square) distribution skewed?

The National Collegiate Athletic Association (NCAA) requires Division II athletes to score at least 820 on the combined mathematics and reading parts of the SAT in order to compete in their first college year. The scores of the 1.5 million high school seniors taking the SAT last year are approximately Normal with mean 1026 and standard deviation 209. For an SRS size 200

1) Find the mean and standard deviation of x bar

2) What is the distribution of x bar?

3) What is the probability that a sample mean value exceeds 1028?

4) The highest 2.5% of sample mean value are higher than ____

5) Has the average score increased since last year? To answer this, do the followings:

I. A SRS size 200 gives a sample mean of 1028. State hypotheses, find the test statistic, pvalue, and express your conclusion using a significance level of α=2.5%.

a. Hypotheses (Use notations)

b. test statistic

c. pvalue

d. Conclusion? Include practical terms.

II. Find a 95% confidence interval for the mean SAT score.

Consider the equilibrium reaction

CO(g)+H2O(g)⇋CO2(g)+H2(g)

Determine how each change in the left-hand column will stress the system and in which direction the equilibrium reaction will shift in response.

Drag the appropriate labels to their respective targets

Choices for equilibrium shif:

Forward reaction rate temporarily decreases, Reverse reaction rate temporarily decrease, Reverse reaction rate temporarily increases, Forward reaction rate temporarily increases

Choices for system stress:

increase reactant , increase product, decrease product, decrease reactant

A 195-kg rugby player running east with a speed of 4.00 m/s tackles a 95.0-kg opponent running north with a speed of 4.5 m/s. Assume the tackle is a perfectly inelastic collision. (Assume that the +x-axis points towards the east and the +y-axis points towards the north.)

(a) What is the velocity of the players immediately after the tackle?

(b) What is the amount of mechanical energy lost during the collision?
______J

A company uses a combination of three components- A, B and C to create three different drone designs. The first design Glider uses 3 parts of component A and 2 parts of components B. Design Blimp uses 2 parts of component B and C, and the last design, Pilot uses one part of each component. A sample of 75 components, 25 A, 25 B, 25 C, will be used to make prototypes for the various designs. If 30 components are selected at random, what is the likelihood two prototypes of each design can be made?

Discuss a specific situation where association rules are used, or could be used, in your organization or in one with which you are familiar. Which association rules are relevant to the organization and why?

What are some outcomes/consequences of high job satisfaction?

can you identify situations in which your job attitudes directly influenced your behavior?