Sunday
May 24, 2015

Posts by anonymous


Total # Posts: 81,702

chemistry ap
My balanced eq is 2Al + 6HCl - 2AlCl3 +3H2 so moles of H2 at STP will be 3x22.4 right?
April 3, 2015

chemistry
Solid iron(III) hydroxide decomposes to produce iron(III) oxide and water vapor. 1.09 L of water vapor is produced at STP. How much iron(III) hydroxide was used? in g.
April 3, 2015

chemistry
3.58 gram sample of an unknown gas is found to occupy a volume of 2.37 L at a pressure of 808 mm Hg and a temperature of 60 oC. What is the molecular weight?
April 3, 2015

social studies
Andrew Jackson's specie circular of 1836 stipulated that after August 15 only _______ would be accepted in payment for public lands. A. gold B. gold and silver C. special banknotes D. silver
April 3, 2015

Chemistry
Can someone help me with this question? Calculate the work for each of the following processes beginning with a gas sample in a piston assembly with T=305 K, P=1.79 atm, and V=4.29 (a) irreversible expensing against a constant external pressure of 1.00 atm to a final volume of...
April 3, 2015

Maths
Here is a list of what you need to make 20 buns: - 100g butter - 150g flour - 200g sugar - 4 eggs Work out what you need to make 30 buns Please help. Thank you x
April 3, 2015

calculus
A rectangular area is to be enclosed and divided into thirds. The family has $400 to spend for the fencing material. The outside fence costs $10 per running foot installed, and the dividers cost $20 per running foot installed. What are the dimensions that will maximize the ...
April 3, 2015

Art
Was it C??
April 3, 2015

Art
This painting is called "Girl in a Southern German Folk Costume" 1. How did the designers of this German folk dress use the principles of art? A. The designer repeats colors throughout the apron to create unity B. The designer uses different colors to create ...
April 3, 2015

chemistry
If a solution is made 0.080 M in Mg(NO3)2, 0.075 M in aqueous ammonia, and 3.5 M in NH4NO3, will Mg(OH)2 precipitate? What is the pH of this solution?
April 3, 2015

math
If y varies inversely as x, and y = 12 when x = 6, what is K, the variation constant? A. 1⁄3 C. 72 B. 2 D. 144
April 2, 2015

Math
You work 40 hours/week for 52 weeks and are given the option to be paid hourly or to go on salary. In which situation will you earn the most? • $30,000/year • $15.00/hour • $30,000/year with a 10% bonus • $15.00/hour and a $2,000 bonus at the end of the year
April 2, 2015

math
please help
April 2, 2015

math
Rich gave her his 1/6 after he received her 1/4. Please help
April 2, 2015

Math
For question 10 here: hs.lindenwold.k12.nj.us/ourpages/auto/2009/6/5/49719605/Chapter%2012%20Review.rtf I have these answer choices: a. glide reflection symmetry b. no symmetry c. glide reflection and translation symmetry d. translation symmetry Is answer C correct?
April 2, 2015

Science
State how matter moves through the biosphere. State how energy moves through the biosphere. Explain each statement using examples to illustrate your explanation.
April 2, 2015

algebra
A train leaves Buffalo traveling west at 60 miles per hour. An hour later, another train leaves Buffalo traveling east at 80 miles per hour. When are the two trains the same distance from Buffalo? Show the equation you use.
April 2, 2015

Algebra help Will only take a minute
5 • 3ⁿ a.15,30,45,60 b.5,15,45,135 c.0,15,45,135 d.15,45,135,405 Thanks!
April 2, 2015

math
The sum of two numbers is 33. The sum of the smaller and 3 times the larger is 81. Find the numbers.
April 2, 2015

Math
2x^5-4x^4-6x,x^5+x^4-3x^3-3x^2
April 2, 2015

Social Studies
If question 1 is about DURING the War, your answer is wrong. All the others seem to be correct.
April 2, 2015

Social Studies
If question 1 is about DURING the War, your answer is wrong. All the others seem to be correct.
April 2, 2015

Social Studies
If question 1 is about DURING the War, your answer is wrong. All the others seem to be correct.
April 2, 2015

Physics
How are lights in schools usually wired... Series or parallel circuits?
April 2, 2015

MATH
.In <ABC, <A=60,<B=70,<C=50. Points D , E ,F are the mid-pointsmof the sides BC ,AC and AB respectively. Find the measures of the angles of the triangle formed by joining the mid-points of the sides of <ABC.
April 2, 2015

MATHS
In the given figure, O is the center of the circle and <AOB=110degree find the value of XYZ.
April 2, 2015

Calculus
Use implicit differentiation to differentiate y=x^(8/37), by writing it as y^37=x^8. Express your answer only in terms of x.
April 2, 2015

Algebra
Thanks for trying to help. The answer was (3t^1/2+5)(3t^1/2 -5).
April 1, 2015

calc
Gravel is being dumped from a conveyor belt at a rate of 30 ft3/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 21 ft high?
April 1, 2015

calculus
Oil spilled from a ruptured tanker spreads in a circle whose area increases at a constant rate of 7.5 mi2/hr. How rapidly is radius of the spill increasing when the area is 10 mi^2?
April 1, 2015

Calculus
Use implicit differentiation to differentiate y=x8/37, by writing it as y37=x8. Express your answer only in terms of x.
April 1, 2015

chemistry
Aqueous hydrobromic acid will react with solid sodium hydroxide to produce aqueous sodium bromide and liquid water . Suppose 4.05 g of hydrobromic acid is mixed with 0.86 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction...
April 1, 2015

Chemistry
What would be the procedure for titrating a beverage to determine the concemtration of weak acid? What reagents would be needed? What appropiate measurements and observations must be made?
April 1, 2015

geometry
cc
April 1, 2015

Algebra II
Logarithms The brightness of an astronomical object is called its magnitude. A decrease of five magnitudes increases the brightness exactly 100 times. The sun is magnitude -26.7, and the full moon is magnitude -12.5. The sun is about how many times brighter than the moon?
April 1, 2015

Art
I think C! but im not sure! please help!
April 1, 2015

physics
For a) you have to integrate the linear mass density equation, then solve for the length given. ans=.0204 kg I still haven't figured out b
April 1, 2015

Reed
Thank You thank You so much! I will fix them! Thanks!!!!!!!!!!!!!!!
April 1, 2015

Reed
Hey Reed u told me u will check my essay and u didn't check it so i posting in this post! PLZ remove the last post which was Yesterday cause I posted my essay there and after u check let me know. Plz don't remove this until I reply so I can see ur reply! Thanks a bunch...
April 1, 2015

exponential equations
The City of South Bay has a current population of 85 000. If the city is increasing at a rate of 7.25% per year, calculate the future population in 8 years time. Round to the nearest person.
April 1, 2015

maths please help and explain
1.simplify with the aid of a calculator Keys: " =degrees sin21"40^1+cos23"50^1
April 1, 2015

Chemistry
Can someone work this out so I can understand it better?
April 1, 2015

math help needed bad
Thank you for your help Ms. Sue.
April 1, 2015

math help needed bad
So thats all to it?
April 1, 2015

Algebra Please Help
How would I do that?
April 1, 2015

Algebra Please Help
Complete the table for the given function. x| y = x^2 + (-3) 0| 1| 2| 3| A. -3, -2, 1, 6 C. 3, 4, 7, 12 C. 0, 1, 4, 9 D. none of the above Thanks!
April 1, 2015

chemistry
B. How many moles of NaOH were delivered? C. How many Moles of weak acid were present in the solution? D. Calculate the molarity of the unknown weak acid solution Can you help me solve those problems as well.
April 1, 2015

Economics
Given a demand fxn of 20-2P and a supply fxn of -4+P for a perf. competitive market: 1. Calculate the equilibrium price and qty. (I got e. price = 4 and e. qty = 8 is that right?) 2. Calculate producer surplus, consumer surplus. (i got 8 and 4) 3. if the market becomes a ...
April 1, 2015

Exponential Equations
The Bruce’s purchased $2500 worth of GIC’s. How long, t, will it take for the investment to increase to $3500, if the interest rate is 2.75%. T= 3500/2000 =1.4 t= 1.4/1+0.0275 What do I do from here
April 1, 2015

Exponential Equations
The Bruce’s purchased $2500 worth of GIC’s. How long, t, will it take for the investment to increase to $3500, if the interest rate is 2.75%. What is the Fv and Pv
April 1, 2015

SCHOOL
SHOOL IS NOT FUN!!!!!! ..... Jk.... April Fools!!!! Have a good day everyone and please don't use jiskha to cheat. Just use it to check your answers! :)
April 1, 2015

Math
Find all the possible values of the expression. sin^-1 -(square root3/2) Ans: 4π/3 + (2π)n 5π/3 + (2π)n
April 1, 2015

Finance - Loans problem
Reiny the answer 307.33 you posted at the bottom is coming up incorrect. please if you can help i would be very grateful. A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments ...
April 1, 2015

Chem
How many grams of ice at 0°C and 101.3 kPa (standard pressure) could be melted by the addition of 0.80 kJ of heat?
March 31, 2015

science
a racer in a kayak travels a 300-meter river course at an average speed of 3 meters per second. how long does it take to complete the course?
March 31, 2015

statistics
A brewery's filling machine is adjusted to fill bottles with a mean of 31.9 oz. of ale and a variance of 0.004. Periodically, a bottle is checked and the amount of ale noted. (a) Assuming the amount of fill is normally distributed, what is the probability that the next ...
March 31, 2015

Finance - Loans problem
Can someone please explain how this problem is laid out to solve.A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At ...
March 31, 2015

Finance - Loans problem
Please If you can. 307.33 is coming up as the wrong answer.
March 31, 2015

Finance - Loans problem
A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At the same time the company sets up a sinking fund in order to repay...
March 31, 2015

statistics
What is the difference between alpha level and critical values?? Does the alpha level just help determine the critical value?
March 31, 2015

AP Exams?
I am in AP Chemistry and AP U.S Hisotry and I have planned on taking the tests. So far I have made an A+ in APUSH, but I an B in AP Chem. I've done kinda bad on the tests I've taken in there and I don't think I will do good on the Ap exam. I think I have a better ...
March 31, 2015

Math
would you need 90 tiles?
March 31, 2015

Art help please
1. D 2. C.
March 31, 2015

Art help please
French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an eye for composition ...
March 31, 2015

Chemistry
I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.
March 31, 2015

Reed
Reed I posted my essay, sorry I just looked at it so I just posted it!
March 31, 2015

reading and writing
I think you're correct
March 31, 2015

Art
French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an eye for composition ...
March 31, 2015

statistics
If the null hypothesis is rejected at the .01 alpha level, it will be rejected at the .05 alpha level. Is this correct?
March 31, 2015

english
he is worried and grieving
March 31, 2015

sonnet
i need to write a sonnet
March 31, 2015

science
Leslie is Bb, she has brown eyes.
March 31, 2015

Readin Reed plz read
ok sorry just checked it! I am posting it now until I do not reply after you check plz do not remove cause then I won't see it! Did you know that you can text and call from an iPhone, but you can only do it with an iPod with WI-Fi! That is not so cool, so check out an ...
March 31, 2015

Readin Reed plz read
Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it. Reed u helped me yesterday for the hook!
March 31, 2015

basic programming principles
if marital s=s then
March 31, 2015

Social Studies
What is a likely example that India supported East Pakistan's effort to gain Independence from Pakistan?
March 31, 2015

Physics
The force acts on a 1.7kg object whose initial speed is 0.44m/s and initial position is x = 0.27. Find the speed of the object when it is a the location x = 0.99m?
March 31, 2015

Ethics & Social Responsibility
Which group of people might not be fully autonomous in choosing to be a research subject?
March 31, 2015

Chemistry
What would be the consequence of competing equilibria, such as from other ingredients in an aspirin tablet in a titration lab results? What if there were several pain relievers in the same tablet? How could the error from these interferences be minimized?
March 31, 2015

Calculus
A certain magical substance that is used to make solid magical spheres costs $800 per cubic foot. The power of a magical sphere depends on its surface area, and a magical sphere can be sold for $20 per square foot of surface area. If you are manufacturing such a sphere, what ...
March 30, 2015

Science help please!!
Hi Katty! Had this question before, you are 100% correct :) Any other questions, I'll be glad to check ;)
March 30, 2015

L.A
In which sentence is the meaning of the word inarticulate best expressed? A. he impressed the audience with his inarticulate expressions B. the young girl was exceptionally animated and inarticulate. C. she had many ideas to share, but she was an inarticulate speaker*** D. the...
March 30, 2015

L.A
I think D as well
March 30, 2015

L.A
I don't think he's ashamed of anne. My other thought was D
March 30, 2015

L.A
What do you think Mr. Frank means in the passage from The Diary Of Anne Frank, act II? Passage: Annes Voice: In spite of everything, I still believe people ar really good at heart. [ Mr. Frank: ( slowly closes diary) Mr. Frank: "she puts me to shame" A. he is ashamed...
March 30, 2015

american government
3. Which of the following is true regarding senatorial courtesy? (Points : 1)
March 30, 2015

Social Studies
the answer is B
March 30, 2015

Programming
1.Do the planning and write an algorithm to solve the following problem. Prepare test data for the example to test all possibilities and draw a trace table. Sam works at a coffee company where all the employees receive a bonus of R700, except the employees in the coffee ...
March 30, 2015

chemistry
is trans-dibromoethene a proper way of labeling an alkene?
March 30, 2015

Math
What percentage of the total students chose skateboarding? Skateboarding boys=2 girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank took you
March 30, 2015

Math
The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p rises to 56 and the ...
March 30, 2015

child day care
there is really no way to get the answer out of the little bittie book they gave us i chose this but still dont understand and i hope your not a teachers cause you are no help to any one's education bringing them down God doesnt like Ugly.
March 30, 2015

Math
Tyler earns 7$ an hour mowing lawns. Write and solve an inequality that he can use to find at least how many hours he has to work to earn 100$
March 30, 2015

math
The answer is 25 lights
March 30, 2015

Reading
Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it.
March 30, 2015

Reading
ya u can
March 30, 2015

Reading
Does this sound good?? Did you know that you can text and call from an iPhone, but you can only do it with an iPod with Wi-Fi!
March 30, 2015

Reading
Thanks
March 30, 2015

Reading
Yes I know what a hook is, It is something that grabs the readers attention, and sorry Ms. Sue!!
March 30, 2015

Reading
Can someone plz help me????????
March 30, 2015

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