Thursday
October 30, 2014

Posts by Rachel


Total # Posts: 1,218

Chemistry
I know how to find half-lives, but I have trouble finding the length of time it would take for the concrentration of X to decrease to Y% of its initial value. For example, this is one of the problems: Methyl isocyanide, CH3NC, isomerizes when heated to give acetonitrile (...
December 16, 2006

Ecology
Not sure if anyone can help, since it's due todayy, but I need a term. What is the term for this? A biologist who desribes, names and classifies organisms? Help would be great. Taxonomist
December 15, 2006

Chemistry - Explain...
Hello! I'm hoping you can please help me with this! I left my book at school (I thought I'd left it in my backpack all day to bring home), and I'm in desperate need of your help because I have a test tomorrow. "Answer the following questions, which refer to ...
November 28, 2006

"Given Molality, calculate..."
"Given: An aqueous solution of C6H12O6 with a density of 1.18 g/ml" I) Calculate Molarity 1) It firsts asks me to, "State the moles of solute" 2) Calculate the mass of the solute in grams - I think I can do this if I know how to get #1 3) Later it also asks...
November 19, 2006

Algebra 1
2. The line y = 4x - 7 crosses the y axis at: a.(4, 0) b.(0, 4) c.(-7, 0) d.(0, -7) Set y=0 and solve for x You can automaticallly elimintae b. and d. because y has to be 0 when the line crosses the y-axis. Something seems to be wrong with your other choices too, recheck them...
October 23, 2006

science
what happens when a candle is alight.
October 20, 2006

Neon
dats a rockin slogan! dats wut im usin 4 my skool project!!!
October 16, 2006

pre algebra
what is 3y+2(-7+x) First, we need to distribute. 2 times -7 is -14, and 2 times x is 2x, leaving us with: 3y+(-14)+x 3y-14+x 9(4m+1) 9(4m+1) 9(4m+1) 12.x= x=1
October 16, 2006

word unscramble
help me unscramble evraysweene
September 28, 2006

Physics
58.21
September 24, 2006

English
Hi I was wondering if anybody could explain what "winged words" are in terms of the Odyssey? Thanks. Thank you for using the Jiskha Homework Help Forum. Here is the definition from allwords.com Definitions winged words plural noun 1. literary: Meaningful words spoken...
September 14, 2006

AP Govt.
What exactly is political culutre? http://www.answers.com/political%20culture =)
September 10, 2006

Stoichiometry problem
I'm stuck and am hoping you can help. Here is the problem: You react 7.92 grams of silver nitrate, AgNO3(aq), with an excess of sodium chloride, NaCl(aq). How many grams of silver chloride, AgCl(s), will precipitate from the solution? Any help would be appreciated. Most of...
September 9, 2006

mathh (unit rate)
is it 2.12??
August 22, 2006

Angle question
Quadrilateral JKLM is a rhombus. If mangleLMK = 36, find mangleKJM In the right triangle ABC, mangleB = 90, AB = 5, and AC= 12. Find BC. Round to the nearest tenth, if necessary. Help? Is AB a side and AC a side? I can't tell from your description which are sides and which...
August 21, 2006

ETH 125
Fellow AXIA student here as well. This is so funny that this post has been going for 3 years. I am going to reread chapter 2 to see if I had missed something. Thanks for everyone's input.
July 20, 2006

Please Help Me On This GCSE Higher Question
Can anyone answer this question which is in a form of a fraction? Simplify: 8x^2+20x-12/8x^2-2 Thanks What does this expression equal? What do you mean by the word "answer"? Did you mean to type 8x^2+20x-12/(8x^2-2)=0 ? the answer is: 2(x+3)/2x+1 ) In an election ...
June 23, 2006

GT English(honors)
For summer work i have to make a notes summary of each required book ive read..the problem is ive never heard or even seen a notes summary before and i am a visual learner can someone please send me an example of one or at least a format of how its done? There are several ways...
July 16, 2005

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