Thursday
May 5, 2016

Posts by Blair

Total # Posts: 161

Biology
Which is the most common complex carbohydrate on earth? A. Starch B. Glycogen C. Cellulose D. Hemicellulose E. Chitin
October 24, 2009

Biology
Which monosaccharide requires the most steps to proceed through glycolysis? A. Glucose B. Galactose C. Fructose
October 24, 2009

Biology
Anaerobic fermentation in yeast produces (include all of the final products). A. Lactic acid, NAD and CO2 B. Lactic acid and NADH C. Lactic acid, NADH and CO2 D. Lactic acid and NAD E. Ethanol and CO2 F. Ethanol, NADH and CO2 G. Ethanol, NAD and CO2 H. Acetaldehyde and NADH
October 24, 2009

physics
In an Atwood machine m1 = 2.00 kg and m2 = 6.50 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push that sets it into motion at vi = 2.20 m/s ...
October 21, 2009

physics
A block is given an initial velocity of 1.00 m/s up a frictionless 25.0° incline. How far up the incline does the block slide before coming (momentarily) to rest? Please help! Thanks!
October 21, 2009

Biology
The reason you might see fewer colonies on your LB/Amp/Arabinose + plate (compared to the number of colonies..? The reason you might see fewer colonies on your LB/Amp/Arabinose + plate (compared to the number of colonies that you see on your LB/Amp + plate) is because? a. UV ...
October 18, 2009

physics
Vroom-vroom! As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with a constant acceleration of 8.40 mi/h·s. In the adjoining bike lane, a cyclist speeds up from rest to 20.0 mi/h with a constant acceleration of 11.5 mi/h·s. Each ...
October 9, 2009

physics
A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.8 m/s at ground level. Its engines then fire and it accelerates upward at 3.90 m/s2 until it reaches an altitude of 920 m. At that point its engines fail, and the rocket goes into ...
October 8, 2009

physics
1st car =8.6/2.05 m/s =4.195m/s 2nd car = 8.6/1.73 m/s =4.971 m/s 4.971-4.195= 0.776m/s a= delta V /delta T (0.776m/s ) /0.32s= 2.44 m/(s^2) That answer isn't correct. This is what I did initially and I'm stumped on this question. Please let me know if there's ...
October 8, 2009

physics
Liz rushes down onto a subway platform to find her train already departing. She stops and watches the cars go by. Each car is 8.60 m long. The first moves past her in 2.05 s and the second in 1.73 s. Find the constant acceleration of the train. _____m/(s^2) Please explain this...
October 8, 2009

physics
A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.30 m above. The keys are caught 1.30 s later by the sister's outstretched hand. (a) With what initial velocity were the keys thrown? _____________ m/s upward (b) What was the ...
October 8, 2009

Organic Chemistry
What is the name of the product made from acetone and 4-methylbenzaldehyde in an aldol condensation?
July 10, 2009

biology
What is the role of Frc-2,6 bis phosphate in Glycolysis and Gluconeogenesis?
February 27, 2009

biology
What is the role of Frc-2,6 bis phosphate in Glycolysis and Gluconeogenesis?
February 27, 2009

Organic Chemistry
What product is expected from the reactino of fumaric acid (trans-2-butenedioic acid) with 1,3-butadiene?
February 27, 2009

Organic Chemistry
Benzene is often produced as a by-product during the synthesis of phenylmagnesium bromide. how can its formation be explained? Write a balanced chemical equation for the formation of benzene.
February 27, 2009

organic chemistry
If, by mistake, a chemist used 100% ethanol rather than diethyl ether as the reaction solvent, would the Grignard synthesis still proceed as expected?
February 27, 2009

Organic Chemistry
Write an equation for the reaction that occurs in the gas trap between SO2 and NaOH.
February 20, 2009

Organic Chemistry
List the following compouns from highest to lowest frequency. Cyclohexanone, 2-cyclohexenone, cyclohexanecarbaldehyde
February 20, 2009

Organic Chemistry
The reaction of (Z)-butenedioic acid with 1,3-cyclopentadiene gives only one product. Why?
February 20, 2009

Organic Chemistry
How could you distinguish between cyclohexane and cyclohexene using Infrared Spectroscopy only? How could you distinguish between 1-hexene and 1-hexyne using IR only?
February 11, 2009

Chemistry!! Please Help!
THANKS! I know what I was doing wrong! I didn't find the pOH I just did 10^-9.65 trying to find x! I understand now! Thanks so much! -B
February 6, 2009

Chemistry!! Please Help!
A 0.285 M solution of the sodium salt, NaA, of the weak monoprotic acid, HA, has a pH of 9.65. Calculate Ka for the acid HA. I think I am having issues with the equation and then the math part. I figured out what 'x' was from the pH, which I believe is 2.2x10^-10, but ...
February 6, 2009

Ochemistry
Suggest an appropriate reducing reagent for the following substrates and predict the product of the reactions : (a) 2-hexanone (b) ethyl 4-nitrobenzoate (reduction of the nitro group) (c) hexanal Would NaBH4 work for all of them ? Please help !
February 5, 2009

Ochemistry
4-chlorophenol is insoluble in water. Explain why 4-chlorophenol dissolves in 2.5M aqueous NaOH solution. -Besides NaOH being a strong base and a great nucleophile is there any other reason ?
January 13, 2009

chemistry-help
Why does an organic mixture being distilled using steam distillation never rise above 100 degrees Celsius?
November 12, 2008

chemistry
Oh it is, but same idea.
November 10, 2008

chemistry
An optical rotation study gives result of +140 degrees. Suggest a dilution experiment to test whether the results is indeed +140 degrees, not-200 degrees. THANK YOU!
November 10, 2008

chemistry HELP PLEASE !
Thank you!
November 5, 2008

chemistry HELP PLEASE !
A solution consisting of isobutyl bromide and isobutyl chloride is found to have a refractive index of 1.3931 at 20oC. The refractive indices at 20oC of isobutyl bromide and isobutyl chloride are 1.4368 and 1.3785, respectively. Determine the molar composition (in percent) of ...
November 5, 2008

Humatn Resource
Does "Pay for performance" fall under the category of "Compensation and Benefits"?
October 13, 2008

Human Resources
I asked this question before, I asked what are some good "Compensation and Benefits" discussion topics? And people gave me a lot of ideas: Higher wages Flexible hours Work at home Increased health care benefits Benefits for same-sex partners Benefits for opposite-sex...
October 13, 2008

Human Resource
What are some good "Compensation and Benefits" (from a HR point of view) discussion topics? It doesn't have to be a broad topic, it could be a specific one. Thank you in advance!
October 3, 2008

chem
In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water, the oxidizing agent is____. Is it hydrogen peroxide?
August 11, 2008

Chemistry
The standard solution of FeSCN2 (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.550. If a trial's absorbance is measured to be 0.350 and its initial concentration of SCN– was 0.0010 M, the equilibrium concentration...
August 8, 2008

Chemistry
The solubility of borax is directly proportional to temperature. Therefore, the sign of H is A. negative B. positive
August 8, 2008

chemistry
lol webwork.
August 8, 2008

Chemistry
Which of the following is NOT true of colligative properties? Colligative properties are... A. responsible for lowering the vapor pressure of a solution versus the vapor pressure of the pure solvent. B. dependent on the mass of solute present. C. independent of the chemical ...
August 8, 2008

Chemistry
The molarity and the molality of a solution prepared by dissolving 2.00 g of ethanol C2H5OH with 99.0 g of water to give a final volume 101 mL are ______Molarity and _______molality. How do I do this?
August 4, 2008

Chemistry- HWK CHECK
1. A solution in which no more solid can be dissoved is referred to as ____. Answer: saturated 2.At constant pressure, heat can be referred to as (entropy, enthalpy, or free energy). Answer: enthalpy The measure of disorder or randomness of a system is(entropy, enthalpy, or ...
August 4, 2008

Chemistry
The freezing point of a solution is A. lower than the freezing point of the solvent alone because higher temperature is required to accelerate solvent molecular motion enough to overcome obstructon by solute particles.. B. lower than the freezing point of the solvent alone ...
August 4, 2008

math
when I have (2x^(3)-18x)-(2x^(3)) / (x^(2)-9) am I suppose to be left with -18x/(x^(2)-9) or is it just 18x? Please help and thanks!
July 29, 2008

math
What are the critical values of f(x)=(x^(7))((x+7)^(2)) and f(x)=7x+6x^(–1)?
July 23, 2008

math
What are the critical numbers of f(t)=3t^(2/3)+t^(5/3)
July 23, 2008

math
I just meant radical for short f(x)=x(x^(2)+9)^(1/2)
July 23, 2008

math
what is the second derivative of f(x)=x *rad(x^(2)+9 )?
July 23, 2008

Math - sign wrong
The answer is still wrong :(
July 19, 2008

Math
The answers are wrong for this one.
July 19, 2008

Math
Use Newton's method to approximate a root of the equation 5sin(x)=x as follows. Let x1=2 be the initial approximation. The second approximation x2 is: and the third approximation x3 is:
July 19, 2008

Math
Use differential, i.e., linear approximation, to approximate (125.4^(1/3)) as follows: Let f(x)=x^(1/3) . The linear approximation to f(x) at x=125 can be written in the form y=mx+b where m is: m=1/75 b=? How do I find b?
July 19, 2008

Math
Consider the function f(x)=8(x^(1/2))+7 on the interval [1,5]. By the Mean Value Theorem, we know there exists a c in the open interval (1,5) such that f'(c) is equal to this mean slope. For this problem, there is only one c that works. Find it.
July 19, 2008

Math
f(x)=2x^(3)–1x^(2)+3x–2 Find the average slope of this function on the interval (1,7).
July 18, 2008

calculus
If 4x^(2)+5x+xy=4 and y(4)=-20, find y'(4) by implicit differentiation. I got y'=(-8x-5-y)/(x)
July 12, 2008

math
What is the time that they will meet on the 7th day?
July 9, 2008

math
Person 1 was walking down a path one day when Person2 appeared in front of it at exactly 8:06 AM. The next day, Person 1 was walking down the same path, and Person 2 appeared in front of it at 6:03 PM. The next day, the same thing happened at 11:05 AM. The next three days were...
July 9, 2008

Chem!
does the addition of a strong acid increase the percent ionization of a weak acid HB?
April 16, 2008

Economics
What economic policy should be adopted by regions with persistent economic problems? Why is macroeconomic policy NOT the solution?
April 5, 2008

Chemistry
The state of aggregation of solids can be described as belonging to the following four types: ionic, metallic, covalent network, and molecular. For each of these types of solids, indicate the kinds of particles that occupy the lattice points and identify forces among the ...
January 29, 2008

anatomy
How many bones in the human body have marrow??
January 9, 2008

AP Chem
i always get the error analysis section of my lab wrong so i need a NON human error in an experiment involving the diffusion of gases Experiment: stick cotton ends of a Q-tip (one soaked in HCl and one in NH3) into either end of a drinking straw and measure where precipitate is
December 11, 2007

Womens History
A woman's rights in reagrds to spousal abuse ____________. A. varied widely depending on the colony in which she found herself living B. varied widely depending on the colony in which she was married. C.were strictly defined by federal law. D.were strictly defined by the ...
September 8, 2006

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