Saturday

April 19, 2014

April 19, 2014

Total # Posts: 905

**Chemistry**

Write the mechanism for (E)-2-5-dimethyl-hex-3-ene and bromine? Assign the R, S configuration for each of the products and determine the stereochemical relationship of each set of products. I think the products will be trans but I am not quite sure how the mechanism work. Any ...

**math**

Why exactally does the absolute value of -3+4i = 5. I know (-3) squared plus (4i) squared = 5? Could you include a graphic approach as well? Thank you.

**Chemistry**

Using the balanced reaction, enter the formula, charge(if any), and state of the species (exclude H2O) in solution if Ba(NO3)2(aq) reactant is present in stoichiometric excess. Separate your answers by comma. NaCl(aq) + Ba(NO3)2(aq) → NR

**10th grade**

Microbiology affects a person on a daily basis because it starts from the things that we do to the things that we don't. Such as when we take Omega 3 Fish Oil Supplements, the oils, and the vitamins from within, helps us daily, without us even knowing about it. Or when we ...

**Organic chemistry**

Is m-nitroaniline soluble in water, 1.0M NaOH, 1.0M HCl?

**Organic chemistry**

is benzoic acid soluble in water, 1.0M NaOH, 1.0M HCl?

**Trig**

Thanks for letting me know about wave seperation. Could you tell me more please. What exactally is meant by wave seperation. Does it mean above and below the midline or does it mean seperation between wave cycles? What does it mean?

**Trig**

in the equation y=acos b(x-h)+k, what exactally does b represent. How is it helpful?

**Trig**

In the equation y=4cos 6x, what does 6 represent? In general for the equation y-acosbx, what does b represent?

**chemistry**

Predict the Products for the following reactions and write the chemical equation. Combustion: Liquid Octane, C8H18 burn in oxygen gas. how would you set this up and predict the product? Thnx in advance whoever figures it out :)

**Chemistry**

"A sample of a nonpolar molecules capable of only dispersion forces can have a higher boiling point the a sample of a polar molecules capable of hydrogen bonding. This statement can only be true if the formula weight of nonpolar molecule(the answers are =,<, or >)th...

**Bible**

I believe the 1st question is number 2. & the 2nd question is number 3. Can anyone confirm this. Thanks.

**Bible**

I need help with these two questions please. I cannot figure out what goes with what. Thanks. The orderly design and purpose of nature which verifies a divine intelligence is a(n) ? argument. Choises: 1. teleological 2. cosmological 3. anthropological The analogy between man a...

**Bible**

I don't know which one of these fits the blank. Can someone please help? The law of cause-and-effect which verifies a divine power is a(n) ? argument. Choises: 1. teleological 2. cosmological 3. anthropological

**Algebra**

A rectangle is 20 inches tall it's area is 260 inches what is the width

**Algebra**

A rectangle is 20 inches tall it's area is 260 inches what is the width

**Business**

What is the proper format for a research taxonomy? I have to write about the Strategic Management process.

**History**

I still think its #1? is that correct?

**History**

One of the significant changes in atmosphere in Jefferson's administration was: 1. The number of common people involved in government. 2. The closing of the bank of the united states. 3. the widespread dismissal of federalist officeholders. 4. The reinstatement of the alie...

**Econonmics**

Assume that the gross national debt initially is equal to $3 trillion and the federal government then runs a deficit of $300 billion

**Organic Chemistry**

The one we used was sodium hypochlorite (NaOCl)

**Organic Chemistry**

What other oxidizing reagents could have been used to convert the 9-fluorenol to 9-fluorenone?

**math**

Ok really I don't know all of the steps but if you look at the da/dt of a) and put it over the dh/dt of b) then you get your answer. I don't know. I'm doing it right now. God Bless!

**Math**

When you put together unequal groups you can only add. Is this correct? Explain

**Science**

I believe a starfish has radial symmetry but how would I divide it using a ruler since there are 5 arms?

**physics**

38 Joules dude

**9th grade**

Mr. Mist’s ramp broke so he tried to lift the his 150 Newton box of ungraded papers with a pulley system. Mr. Mist had to pull the rope in his system 3 meters. The papers were lifted into his car by the pulley system which lifted the box 1.5 meters, while Mr. Mist only us...

**Trig**

How do you do this problem? 1+i(square root of 3)

**phisics**

To keep the cylinder in equilibrium both side must be equal. (m1)*(v^2/r)=(m2)*g Left side=Right side (v^2/r) = (m2)*g / m1 isolate “v” on the left… v^2 = (m12)*g*r/m1 v = sqrt((m2)*g*r /(m1)) plug in the values and you are done… v = sqrt(2.5*9.81*.2)/(1.5)...

**physics**

A ball of mass 0.35 kg is fired with velocity 157 m/s into the barrel of a spring gun of mass 1.8 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to friction. What fraction of th...

**physics**

thanks

**physics**

A 80- kg ice hockey player standing on a frictionless sheet of ice throws a 6.2- kg bowling ball horizontally with a speed of 2.1 m/s. With what speed does the hockey player recoil?

**us history**

In 1754,which country claimed the least amount of land in North America

**FINANCE**

Tim recently invested $3,500 in a project that is promising to return 10.75 percent per year. The cash flows are expected to be as follows: End of Cash Year Flow 1 $750 2 800 3 ??? 4 950 Note that the 3rd year cash flow is unknown. Assuming the present value of this cash flow ...

**Statistics**

In hypothesis testing, if a claim statement is asking to test a percentage, your graph is a T or Z line?

**Statistics**

In hypothesis testing, if the population standard deviation is KNOWN, your graph should be labeled a T or Z line? In hypothesis testing, if the population standard deviation is NOT KNOWN, your graph should be labeled a T or Z line?

**math**

im learnin about y=mx+b 1.describe the line you think each equation represent Y=x, y=5, x=-3 2. The equation of a line is y=mx+2. determione the value of m when the line passes through each pint D(12.5) s(1.-3) e(-2.6) a(-5.1)

**Chemistry**

A student finds a medallion which could be made of pure platinium or silver. IN order to find out what the medallion is made of the student takes the medallion to a chemistry lab. The student measures the density of the medallion as follows. The medallion is placed on a balanc...

**chemistry**

A rectangular metal bar has a volume of 50.0 inches cubed.The Metal BaR weighs 1.42kg. Calculate the density of the metal in grams per cubic centimeter.

**math**

Brian O'Reilly earns twice as much each week as a tutor than he does pumping gas. His total weekly wages are $150 more than that of his younger sister. She earns one quarter as much as Brian does as a tutor. How much does Brian earn as a tutor?

**Biology**

What's the difference between LB "-" and LB "+"?

**Chemistry**

If 7.83 g FeCl3(s) is dissolved in enough water to make 2.50 L of solution, what is the concentration of Fe3+ in the solution?

**physics**

A highway curve with a radius of 430 m is banked properly for a car traveling 115 km/h. If a 1550- kg Porshe 928S rounds the curve at 220 km/h, how much sideways force must the tires exert against the road if the car does not skid?

**6th grade math**

how would you say .3481 in words?

**math**

write the six-digit number that has the digit in the thousand's place, with the remaining digits being

**11th grade**

1.71 cause of Sig Figs

**Finance**

Jenning inc. paid out total dividends equal to $ 11,124,200 in 2008. If Jennings reported Retained earnings of $320,868,600 for 2007 and retained earnings of $350,290,100 for 2008, what was Jennings reported net income in 2008?

**math (tree diagram)**

yo dudes hit me up on aim my screename is lilkevyy45

**math (tree diagram)**

yo dudes hit me up on aim my screename is lilkevyy45

**math (tree diagram)**

heyy

**chemistry**

does changes in solubility between solute and solvent, just mean that the rate at which solute co2(gas) is dissolved by solvent to form co2(aq) is = to rate at which c02(aq) gains eenrgy from collitions to leave dissolved state or what? I need siome clarity.

**chemistry**

carbon dioxide collide with the liquid solvent and enters its dissolved states? so what does this have to do with solubility equillibrium.

**chemistry**

Equillibrium, an example given by my textbook confused me. First it shows a reaction inside a soft drink: co2(g)--><--co2(aq) but than it says the reaction inside a soft drink would involve solubility equillibrium because it involves a change in solubility between solven...

**Chemistry**

I meant endothermic not endergonic sorry.

**Chemistry**

Since decomposition is an endergonic reaction. Does this mean it's reverse reaction synthesis is exothermic?

**chemistry**

6. dilution can also decrease rate of raction because you deacrease concentration?

**chemistry**

5. addinf water to a equillbrium system will make it more dilute and increase the volume but decrease pressure so system will shift in direction which produces more ions?

**chemistry**

1.If a container that is 1L has 1 mol of solid NACL , if you add more nacl will the concentration of solid increase? it should? because if you increase it to two mols it will become 2 mol/l right? so in a equillibrium system like nacl(s)--><---na+ + cl- if you increase a...

**college algebra**

The origin is (0,0) Both the x and y intercepts at the origin are always 0.

**social studies**

I agree that people should be able to help themseleves. To have a successful life you must have the mindset of a winner. To be a winner you must have three things self-confidence, determantion, and an high education.

**social studies**

People should be able to help themselves. If they want to make their life better they need to be motivated and should find a way to make it happen. Equal opportunity for all. You just have to work for it. If a person is in a low paying job that is probably all they really want...

**6grade english**

Give them fish they will eat for a day. Teach them to fish they will eat for years. With regard to low income countries and based on your knowledge and understanding of culture, society and social stratification provide support for or criticism of this statement.

**math**

hy,i have trouble doing (x+1) with an exponent 3 on top of the parentheses and (x+1) with an exponent 4 on top of the parentheses thank you

**6th grade english**

I totally agree with the statement. Everyday people around the world is trying to make life better in some kind of way. I think showing these people new skills and ways they can benefit from it, people would be more excited to learn new things everyday. I think it would be bet...

**6th grade english**

Give them fish they will eat for a day. Teach them to fish they will eat for years. With regard to low income countries and based on your knowledge and understanding of culture, society and social stratification provide support for or criticism of this statement.

**6th grade english**

Give them fish they will eat for a day. Teach them to fish they will eat for years.

**Chemistry**

So would it be rate = (10^-7)*(10^-7)*(1.4X10^11)

**Chemistry**

A reaction is said to be diffusion controlled when it occurs as fast as the reactants diffuse through the solution. The following is an example of a diffusion controlled reaction. The rate constant for this reaction is 1.4x1011 M-1s-1 at 25oC and the reaction obeys the followi...

**calculus**

integrate log base 10 x / x dx i dont understand this

**CALCULUS HELP!!!**

integrate 1/(x^2sqrt(1+x^2)) i know you have to use trig sub but iono how to cancel out some terms...much help is appreciated

**3rd grade**

kevin has $11.00 he gave terrell ave $3.00 and devin $2.00 about what fraction of his money does he have left about 1/4 about 1/3 about 1/2 about 2/3

**3rd grade**

kevin has $11.00 he gave terrell ave $3.00 and devin $2.00 about what fraction of his money does he have left

**math**

kevin has $11.00 he gave terrell ave $3.00 and devin $2.00 about what fraction of his money does he have left

**algebra**

I am coming up with (-5,-2,4) for my answer and I see you x=5

**algebra**

solve system of equation 5x+2y+z=-25 5x-3y-z=-23 3x+y+2z=-9

**algebra**

Did I do this problem right? (2y+5w+6)(5y+5w-4) 2y(5y)+ 2y(5w) + 2y(-4) + 5w(5y) + 5w(5w)+ 5w(-4) + 6(5y) + 6(5w) + 6(-4) then I multiplied: 10y^2 + 10wy - 8y + 25wy + 25w^2 - 20w + 30y + 30w - 24 then I combined like terms: 10y^2 + 15wy + 25w^2 + 22y + 10w - 24 final answer: ...

**algebra**

ok I finished the problem. Is this right? 2y(5y)+ 2y(5w) + 2y(-4) + 5w(5y) + 5w(5w)+ 5w(-4) + 6(5y) + 6(5w) + 6(-4) then I multiplied: 10y^2 + 10wy - 8y + 25wy + 25w^2 - 20w + 30y + 30w - 24 then I combined like terms: 10y^2 + 15wy + 25w^2 + 22y + 10w - 24 final answer: 10y^2 ...

**algebra**

I don't even know where to begin with this problem. multiply (2y+5w+6)(5y+5w-4)

**chemistry**

Ca(ClO3)2 + KCl --> CaCl2 + 3O2 + KCl Mass of test tube = 7.918g Mass of KCl/Ca(ClO3)2 mixture + tube = 19.164g Mass of KCl/CaCl2 residue + tube = 18.635g What is the weight % of Ca from the Ca(ClO3)2 impurity in the original mixture?

**Math**

The directions say to use a grapking utility to approximate (to two-decimal-place accuracy) any relative minimum or maximum values of the function: y=x^3 - 6x^2 + 15 Can someone please help me because my graphing calculator is not working!!!

**analogies**

man its hard

**CHEMISTRY URGENT PLZ HELP**

thanks damon

**CHEMISTRY URGENT PLZ HELP**

uh i dont think thats how u do it because i think you need to add and remove electrons from two separate reactions first before multiplying it out...but thank you anyway

**CHEMISTRY URGENT PLZ HELP**

First of all I am not the same person as before...his name was Max, my name is Kevin so i do not know that you answer this question before. Secondly, I do not know what you mean about about loss of 2 electrons, how would i use hydrogen to balance the charges when I have: SO3(2...

**CHEMISTRY URGENT PLZ HELP**

Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) can someone help me step by step??

**CHEMISTRY**

Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) can someone help me step by step??

**English lit.>Grendel**

Having trouble understanding the book Grendel...is there a site you know of that may help? Thank you, Kevin

**physics**

An object starts from rest and accelerates uniformly down an incline. If the object reaches a speed of 40 m/s in 5 seconds, what is its average speed?

**college algebra**

That's very cool! Thank you for your time!

**college algebra**

Find the sum of the first 500 positive integers. thanks for any help!

**college algebra**

find the general term of the following sequence 1/3, 3/5, 5/7, 7/9, ... thanks for any help!

**math**

find the general term of the following sequence 1/3, 3/5, 5/7, 7/9, ... thanks for any help!

**s.s**

i think that several states ratified the Constitution only after they were promised that a bill will protecting individual rights would be added to it. Many Antifederalists did not think that the Constitution would protect personal freedoms.

**s.s**

Why did Congress add the Bill of rights?

**s.s**

What was the main argument of the Antifederalists against the Constitution?

**Thermochemistry**

So q=mc(Tf-Ti) could be written as Delta H=mc(Tf-Ti) assuming the pressure is constant?

**Thermochemistry**

I'm confused about the difference between the q in q=mc(Tf-Ti) and (Delta)H, or enthalpy. What exactly does enthalpy mean and how is that different than q? (I'm also confused about what Gibbs Free Energy actually means; I know that if it's negative, the reaction is...

**CHEM**

NH3 is a base because it accepts a proton from H2O.

**S.S**

What impact did the Virginia Statute for religious freedom have on the U.S government?

**Biology**

What portion of the brain is responsible for voso motor control?

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