Tuesday
December 6, 2016

# Search: re-apchem post

Number of results: 4,789

apchem
what is the density of vinegar? thanks
March 16, 2010 by urgent

What is the equation for HOCl dissolves in HOH? I don't get it...
April 19, 2010 by Kiki

apchem
can someone explain the synthesis reaction from ethane to acetylene?
May 22, 2011 by anon

Apchem
What are the initial conditions on the ICE table for the common-ion effect?
February 26, 2010 by Riley226

APChem
Hi Does red cabbage contain one or many anthocyanins & how do you know? this really helps--thank you!
February 27, 2010 by Kiki

APChem
does anyone know a good website i could look at so i could answer this question: ? Explain how indicators work using a chemical reaction as part of your explanation. Any websites? please? thank you!!
February 27, 2010 by Kiki

Math
A farmer builds a straight fence that's 49 ft. He puts a post every 7ft. How many post does he need. A post is at the beginning and end How can you show the relationships in the problem Solve and explain your reasoning 8 post. I cans draw a picture
May 23, 2016 by Anonymous

Math 117
Explain how to divide a polynomial by a binomial using an example. (Please refer to the post “How to post equations” in the Main Forum to post your response with correct equations/expressions showing.) Make sure you post the explanation as well as the example.
July 8, 2010 by lovelife

Kristin, Physical Science
Just post your question. When you post under someone else's post, it's apt to be missed. Sra
January 19, 2010 by SraJMcGin

Biology
I think my questions were skipped over ignore this post if this is not so... h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 8 2 7 0 5 2 8 h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 8 2 6 9 0 4 4 please post ...
July 4, 2010 by Kate

physics
A mass with an initial combined potential energy and kinetic energy of 10,000 joules is dropped onto a fence post to drive it into the ground. The post is driven 0.25 meters into the ground before it comes to rest with the mass sitting on top of the post. How much work was ...
January 24, 2012 by Charles

physics
One end of a post weighing 400 N and with height h rests on a rough horizontal surface with Ks=0.30. The upper end is held by a rope fastened to the surface and making an angle of 36.9^\circ with the post. A horizontal force F_vec is exerted on the post as shown. (Figure 1) ...
January 7, 2013 by Anonymous

English
1. Can I ask you to wash the dishes? 2. May I ask you to wash the dishes? 3. Might I ask you to wash the dishes? --------------------- What is the difference between #1 and #2? Do you use #3? ================================ 4. Where can I find the post office? 5. Where is the...
June 28, 2016 by rfvv

socials
I try to post and see if work. It happen to me like this that one day I be able to post the other day not. That so weird. Thanks for help with my assignments days ago ms. sue. I ask my sister to post them for me my computer not work for Jiskha. If this be able to post I be so ...

APChem
Hi! Thank you for your help... A 25.0 mL sample of 0.723 M HClO4 is titrated with a 0.273 M KOH solution. The H3O+ concentration after the addition of 66.2 mL of KOH is ______M. (The answer is supposed to be 1.00X10^-7) How do I set this problem up? I realize that it is a ...
March 21, 2010 by Kiki

Physics......
A ball on a 6.5 m long string swings down and wraps around a post that is 4.0 m below the post the string is attached to. If the ball is released level with the post to which it is attached, what will be the velocity of the ball when it is at its highest point over the lower ...
November 17, 2011 by ....

Physics
A ball on a 6.5 m long string swings down and wraps around a post that is 4.0 m below the post the string is attached to. If the ball is released level with the post to which it is attached, what will be the velocity of the ball when it is at its highest point over the lower ...
November 17, 2011 by .Help pleaseeeeeeeee

math
An electric post was broken by a strong typhoon.It formed a right triangle with the ground.If a broken part makes an angle of 25 degrees with the other part,and the topmost part of the post which is post which is on the ground is 40 ft from the base,how tall was the post?
March 10, 2012 by NIRVANA RIZA A. GARON

To Debela Duguma
Your question tucked at the end of another post was probably lost. Post the complete question as a new post if you would like help.
July 23, 2013 by MathMate

English - ms. sue
ms. sue my sister make account on here and i post site where i put my questions but my post not post.

APCHEm urgent!!!!!!
Hi thank you so much!!!! What is a net ionic equation for the reaction of H+ with Cu(NH3)4 ^2+ ALSO what is the net ionic equation for the reaction of H+ with Hg2Cl2 Does the H+ addition increase, decrease, or has no impact on the solubility of the salt.?
March 15, 2010 by Kiki

Geometry
I have two post that meet the ground perpendicular and the ground is level. One post is 40 feet high, the other is 25 feet high. If I draw a hypotenuse from the top of one post to the base of the other post and another hypotenuse from the top of the other post to the base of ...
July 9, 2013 by Josh

apchem
A 15.0g sample of liquid ethanol, C2H5OH, absorbs 5.13x10^3 J of heat at its normal boiling point, 78.0C. The molar enthalpy of vaporization of ethanol is 39.3kJ/mol. (a) What volume of ethanol vapor is produced? The voume is measured at 78.0C and 1.00atm pressure. (b) What ...
January 27, 2008 by alk

math
twelve posts stand equidistant along the stadium. starting at the first post, a runner reaches the eight post in 8 seconds. if he runs at a constant rate, how many seconds are needed to reach the twelfth post?
October 16, 2010 by kelly

math
Three points P, Q and R are on a level ground. Q is 240m from P on a bearing of 230°. R is 120m to the east of P. (a) Using a scale of 1cm to represent 40m, draw a diagram to show the positions of P, Q and R in the space provided below. (b) Determine : (i) the distance of R ...
June 2, 2012 by Anonymous

to Hussam
Please click on Post a New Question when you need to post a question. When you post in response to another question, it gets lost. =)
January 27, 2007 by Writeacher

English proposal
I am going to post my proposal here so can someone please edit it? When I post it can you quickly copy and paste into a document and delete my post from here so it won't be public?

Calculus
At a certain point on the beach, a post sticks out of the sand, its top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(pi/6(t-2)) where t is the ...
September 22, 2014 by Nick

math
a post is driven into the ground. the first strike drives the post 30 inches into the ground. the next strike drives the post 27 inches into the ground. assume these distances form a geometric sequence, what is the total distance the post is driven into the ground after 8 ...
April 22, 2013 by Anonymous

math
a post is driven into the ground. the first strike drives the post 30 inches into the ground. the next strike drives the post 27 inches into the ground. assume these distances form a geometric sequence, what is the total distance the post is driven into the ground after 8 ...
April 22, 2013 by Taylor

APChem
Hi I tried to understand this but I don't know why the answer is B: Which one of the following pairs cannot be mixed together to form a buffer solution: A) NaC2H3O2, HCl B)RbOH, HBr C) NH3, NH4Cl D) H3PO4, KH2PO4 E) KOH, HF The answer is B but could you explain why? I know its...
March 21, 2010 by Kiki

APChem
Is this true or false?:A buffer can be destroyed by adding too much strong acid. I thought that a buffer can be destroyed by adding too much weak acid, but I'm not sure...
March 7, 2010 by Kiki

To Ani - re Afrikaans post
June 21, 2011 by Writeacher

Math-calculus
At a certain point on the beach, a post sticks out of the sand, it's top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(PI/2(t-2)) where t is the ...
September 24, 2014 by Matt

trigonometry
A guy wire from the top of a telephone post touches the ground at a point 7 meters from the foot of the post. If the wire and the post make an angle of 56°40', find the length of the guy wire.
January 11, 2015 by maniru

College Physics
A 50 kg skater moving at 5 m/s over frictionless ice grabs a rope stretched out 10m from a post and perpendicular to her path. She then moves in circles, spiraling inward as the rope wraps around the post. How fast is she moving when she is 2 meters from the post?
September 11, 2010 by Charlie

physics
Tetherball is a game played by kids. The equipment consists of a volleyball on a string, with the other end of the string tied to the top of a post. Kids hit the ball back and forth around the post. Consider a volleyball of total mass 200 g attached to the top of a post by a 2...
April 29, 2013 by kjhgkjhgkjhg

physics
A fence post is 52.0 m from where you are standing, in a direction 37.0 degree north of east. A second fence post is due south from you. What is the distance of the second post from you. If the distance between the two posts is 80.0 m?
November 18, 2015 by tweetie

physics
A fence post is 52.0 m from where you are standing, in a direction 37.0 degree north of east. A second fence post is due south from you. What is the distance of the second post from you, if the distance between the two posts is 80.0 m?
November 18, 2015 by tweetie

Physics
A fence post is 50.0 m from where you are standing, in s direction of 37.0 degree north of east. A second fence post is due south from you. What is the distance of the second post from you,if the distance between the two posts is 80.0?
November 18, 2015 by Tweetie

To Ian
February 29, 2012 by Writeacher

english
i need help with my english....BUT i can't post it for some reason ...it says that i can't post a link, but i didn't even post a link
December 20, 2009 by Anonymous

How do you post links on here? I tried to post one, but it didn't let me.
September 29, 2010 by Dawn

Buddha Story....
May I post a Buddhist Koan (parable or riddle) that I wrote myself and get a critique of it? I already showed it to some of my Buddhist friends at the Pao Fa Temple and they really liked it. No. It is not homework, and we do homework help, and do that pretty well. We do not do...
May 7, 2007 by Tyler

French for Suzana
I just spent an hour trying to post things for you, using "Post a New Question." I think because it didn't have MY name as "First Name" it didn't post! No way can I do that all over. Here is Equipe 1 and 2 online but Oxford University Press has nothing on Equipe 3 or 4. (...
September 5, 2007 by SraJMcGin

APChem
"The osmotic pressure of a saturated solution of strontium sulfate at 25C is 21 torr. What is the solubility product of this salt at 25C (Hint: calculate molarity from the colligative properties eqn of osmotic pressure and use it in the equilibrium expression" I converted torr...
March 17, 2010 by Kiki

calculus
A person 150cm tall is walking away from a lamp post at the rate of 15 meter per minute. when the man is 2.5m from the lamp post, his shadow is 3m long. Find the rate at which the length of the shadow is increasing when he is 7m from the lamp post.
April 18, 2014 by nurul

Re Literary post with questions
Your post has been removed. 1. Choose a more appropriate screen name. Further posts with that name will be removed. 2. Once you write up YOUR THOUGHTS, please re-post with a suitable screen name, and someone here will be happy to comment.
November 5, 2009 by Writeacher

trigonometry
Solution of problem: An electric post was broken by a strong typhoon .it rmed a right triangle with the ground.If a broken part makes an angle of 25 degrees with other part and the topmost part of the post which on the ground is 40 feet from the base ,how tall was the post?
September 17, 2012 by Anonymous

im trying to post something but it says I cant because youre not allowed to post internet addresses but I don't have any in my post please help. You likely have a www in the text. nope read it over and over .is that the only thing it could be because I really need to post this...
April 24, 2007 by Jon

Math-reasoning
A farmer wants to build a straight fence with a post every 7 feet. Each end has a post. For a fence that is 49 feet long, how many posts will the farmer need? Describe the quantities given Tell how you can show the relationships in the problem Solve and explain your reasoning ...
May 23, 2016 by Kennedy

HEALTH
What does PTSD stand for? A. Post-traumatic stress disorder B. Post-traumatic stressor disorder C. Post-traumatic sensation disorder D. None of the above A?
August 13, 2012 by Aya

Algebra
At the time of George W.Bush's presidency, there have been 43 presidents of the United States. Draw a Venn diagram showing the following facts about where each served before assuming the presidency. How many presidents served as vice-president and in the Senate, but did not ...
November 9, 2011 by Monica

math
At the time of George W.Bush's presidency, there have been 43 presidents of the United States. Draw a Venn diagram showing the following facts about where each served before assuming the presidency. How many presidents served as vice-president and in the Senate, but did not ...
February 6, 2012 by Anonymous

Algebra
At the time of George W.Bush's presidency, there have been 43 presidents of the United States. Draw a Venn diagram showing the following facts about where each served before assuming the presidency. How many presidents served as vice-president and in the Senate, but did not ...
August 20, 2012 by Sue Jackson

math
shadow of a goal post is 6m longer when the elevation of the sun is 30° then when it is 60° calculate the hight of the post?
January 22, 2013 by ikhalea

english
i want to post a story of mine can anyone tell me any website where i can post one.....plz say
October 22, 2008 by Anonymous

Problem
I was wondering why after you post a lot of questions it wont let u post any more plz help.
October 9, 2012 by jman

To Jane
I look for but did not find the post on pH of CO2 equilibrated with H2O. If you will post that again perhaps I can help.
March 28, 2013 by DrBob222

To Minnie
July 8, 2013 by Writeacher

Calculusss heeelp plzzz
A rocket is being tracked from a radar post that is 10 km from the launch pad.the rocket arises vertically at a height of 17.32 km and then turns at an angle of 30 degrees fron the vertical directly away from the radar post .it then travels  at the constant speed of 12000 km/...
March 21, 2011 by Rahat

physics
Tetherball is a game played by kids. The equipment consists of a volleyball on a string, with the other end of the string tied to the top of a post. Kids hit the ball back and forth around the post. Consider a volleyball of total mass 200 g attached to the top of a post by a 2...
April 29, 2013 by ianian

quick ?
I just emailed the site to post my spanish question that it wont let me post. What happens now?
July 29, 2008 by Jon

Problem Posting
trying to post a question, but it says I'm not allowed to post internet addresses--but I'm not. any ideas on this?
March 28, 2010 by Val

Inquiry
Is there an easy to retrieve the response to a post? Any ideas Do I have to scroll through till I find my "post"?
September 12, 2008 by jules

Help!
I was wondering if someone could show me how to post links on this website. It gives me an error when I try to post a link in my reply.
January 5, 2009 by Don

Math
Which rule matches the function graphed below? I cant post sites and I need to post my graph. 1.y = –2x (MY ANSWER) 2.y = 2x 3.y = x – 4 4.y= x + 4
February 19, 2016 by LOVE

Physics
A motorcycle is travelling at a constant acceleration in a straight line. When it passes by the first lamp post, it is travelling at 10ms-1. When is passes by the next lamp post which is 200m from the first lamp post, the motor cycle is travelling at 16 ms-1. What is the ...
June 27, 2014 by Ashley

QUESTION FOR ALL!!
Where is Ms. Sue??? I haven't seen her post any answers for a while now. She's such a help!! Does anyone know where she is? Post any comments. ~aShLeY
May 18, 2010 by Ashley

to Dr Jane
Please don't post incorrect answers to students questions. If you're the least bit unsure, don't post anything at all.
March 12, 2013 by Writeacher

Art
Writeacher, could you please check this sentence? Thank you. 1) He dropped me off at the post office. How would you rephrase it? He let me get (out of the car) at the post office. He made me get off the bus at the post office. within the end of the week is not the same as by/...
May 21, 2012 by John

CRT 205 - Anonymous
Your post was removed. Once you write up YOUR THOUGHTS, please re-post, and someone here will be happy to comment.
February 27, 2009 by Writeacher

English -- ann
Your post has been removed. Once you write up YOUR THOUGHTS, please re-post, and someone here will be happy to comment.
October 3, 2009 by Writeacher

for Stephanie re HIS/115
Your post has been removed. Once you write up YOUR THOUGHTS, please re-post, and someone here will be happy to comment.
February 25, 2010 by Writeacher

dr.bob222
when you get a small little chance can you check my math in last message i posted. thank you. I read the post earlier but didn't post a response because I was confused by the c in the formula.
January 30, 2007 by Jasmine20

geography
he kind of economy that was created in Pittsburgh is called a. post-industrial. c. post-modern. b. commodity-based. d. twenty-first century.
November 16, 2012 by Katt13unknownchika

To: Linda mogale
I deleted your post because you included a phone number. Please do not post personally identifiable information on Jiskha, You should do what YOU want to do for a career.
January 12, 2015 by Ms. Sue

To Bob DD
Because of your terribly rude and uncalled-for remarks directed at one of our tutors, your ugly post was removed. Please do not post here again.
March 23, 2009 by Writeacher

to Mary - re "Math (basic statistics) ..."
Your post has been removed. Once you write up YOUR THOUGHTS, please re-post, and someone here will be happy to comment.
March 7, 2010 by Writeacher

Chemistry+last post
can someone reply to my last post?
February 3, 2009 by Chopsticks

To pamela smalls re adult education
Your post has been removed. Once you write up what YOU THINK the answers are, please re-post, and someone here will be happy to comment.
March 2, 2010 by Writeacher

To Bridgett
Your post has been removed. Jiskha is NOT the place to post ads for anything, no matter how noble you may believe they are. Please use another forum for such communications.
October 2, 2010 by Writeacher

Jiskha
I can't find my last spanish post from yesterday... Also, the search box now doesn't take me to my most recent post if I type in "mysterychicken" like it used to; why not? Thanks -MC
April 27, 2011 by mysterychicken

Physics
Car A passes a light post moving at 25m/s and continues at this speed. Two seconds later, another car passes the light post moving at 40m/s. Assuming no acceleration of either car. a)How much time will it take for the second car to catch up with the first car? b)How far from ...
February 12, 2012 by Coco

Geometry
I HAVE A QUESTION. When I post a question and there is now response to it does it means that my answer to my questions are correct? I post two questions yeaterday and received no response .Today I post the same two questions and still got no response. They are math questions ...
June 14, 2007 by DANIELLE

Physics
On a flat golf course, a golf ball lies 12m from the base of a lamp post. A golfer hits the ball with a club, giving the golf ball an initial velocity of 18 m/s. At 2.9 seconds, after being hit, the golf ball strikes the top of the lamp post. How high (m) is the lamp post?
May 26, 2015 by Alex

Physics
A series of pulses, each of amplitude 0.190 m, are sent down a string that is attached to a post at one end. The pulses are reflected at the post and travel back along the string without loss of amplitude. (a) What is the displacement at a point on the string where two pulses ...
March 16, 2013 by Jenna

IT210
Why do you think the requirements analysis process is so difficult? Describe two things you can do to overcome these difficulties. Post a Hello World pseudocode or coding example in your post.
September 14, 2010 by Anonymous

sat
A fence consist of sections built in a row. the figure above shows the first two sections of the fence. each section is identical and consists of two horizontal boards between consecutive vertical posts. each post cost \$ 8 and each board coat \$6. If the total cost of the ...
September 30, 2015 by Anonymous

calc
a man 6 feet tall is walking away from a lamp post at the rate of 60 feet per minute. when the person is 6 feet from the lamp post, his shadow is 12 feet long. find the rate at which the length of his shadow is increasing when he is 145 feet from the lamp post
November 3, 2016 by homestead high

To Jiskha Teachers ~
Please reply my science post I really want to know if Im correct because I just post and you ignore it. PLEASE check it. Thank You! :)
January 18, 2012 by Laruen

math
A girl 1.6 m tall, stands 3.6 m from a lamp post at night. Her shadow from the light is 0.9m long. How high is the lamp post?
March 20, 2013 by Chris

calculus
A lamp post 3m high is 6m from a wall. A 2m man tall is walking directly from the post toward at 2.5m/s. How fast is his 1.5 from the wall
October 20, 2014 by James

Last chemistry post
Can someone please reply to my previous post about chemistry preferable DrBob since he was helping me on it, but anyone is fine.
January 29, 2009 by Chopsticks

Spanish, posted Sept. 14
September 15, 2010 by SraJMcGin

math
Why do my numbers scramble when I post math homework into my classroom forum posting box when I click on post message?
February 29, 2012 by catherine

Math
A 5'6" person is standing near a light post that is 18' above the ground. How long is the man's shadow when he is 5' from the base of the light post?
September 11, 2012 by No Name

math
If a ramp has a slope of 1/8, and I need to put a support post 11 feet from the low point on the ramp, how long should the post be?
April 29, 2013 by Hannah

Math
1.5m tall boy stands at a distance of 3m from a lump post and cast a shadow of 4.5m on the ground.Find the height of lump post
February 11, 2016 by Devinder sharma

Math
is this the correct answer? I might post more on this exact post, so please bare with me? These are proportions 1.) 2:5 = 4:y Answer: y=2
September 6, 2011 by Bryce

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