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April 20, 2014

Search: Chemistry/Electrochem

Number of results: 101,427

chemistry-electrochem
i need help. my assignmetn its due in less than 24 hrs. can anyone tell me where i went wrong?
Thursday, September 16, 2010 at 6:48am by lucylu

chemistry-electrochem
These numbers must refer to paragraphs, problems, chapters, or something of that nature where the full problem is found.
Thursday, September 16, 2010 at 6:48am by DrBpb222

chemistry-electrochem
Determine the equilibrium constant, Keq, for the reaction 5.3 10–19 18.30 1.7 1054 1.9 1018 5.7 10–55 this is an assignment question- as writen, no values, nothing. any help
Thursday, September 16, 2010 at 6:48am by lucylu

chemistry- electrochem
Complete and balance the following redox equation. The sum of the coefficients when they are all whole numbers is MnO4- + H+ + Br-® Mn2+ + Br2 + H2O (acidic solution) 6 17 21 29 43
Friday, September 17, 2010 at 9:14am by lucylu

Electrochem
I'm wondering the exact problem! I don't do how to write the balanced equation..
Sunday, May 13, 2007 at 3:58pm by India

Electrochem
I'm wondering the exact problem! I don't do how to write the balanced equation..
Sunday, May 13, 2007 at 3:58pm by India

Electrochem
I'm wondering the exact problem! I don't do how to write the balanced equation..
Sunday, May 13, 2007 at 3:58pm by India

chemistry-electrochem
that is the full question. i cut and pasted it. i have emailed the lectures and have heard nothing...as usual. i have asked them if there should be more infor or a picture or something but nothing! how am i supposed to do it then?
Thursday, September 16, 2010 at 6:48am by lucylu

chemistry- electrochem
thanks DR BOB, i did get that. they have given us an assignment for distant ed. students and we haven't even covered the topic yet. the assignment is due the day we start the electro chem topic! not good. thankyou
Wednesday, September 15, 2010 at 4:06am by lucylu

Chemistry/Electrochem
Consider a cell at 299K: line notation Fe-Fe2+(1.39)--Cd2+(2.35)-Cd Given the overall standard reduction potential of the cell is -0.038. What will the concentration of the Cd2+ solution be when the cell is dead?
Monday, October 1, 2012 at 2:27pm by Andres

chemistry- electrochem
just one thing on this dr bob, i thought that it was Ecell= E*cathode-E*anode. Why do you have a + sign between the 2. E1+E2? your way i get 0.35+(-0.13)=0.22, but my way i get 0.35-(-0.13)=0.48? which one?
Wednesday, September 15, 2010 at 4:06am by lucylu

chemistry- electrochem
Mn in MnO4^- goes from +7 on the left to +2 on the right. Br goes from -2 (for 2 Br^-) on the left to 0 on the right (for two Br atoms). Now you balance.
Friday, September 17, 2010 at 9:14am by DrBob222

chemistry- electrochem
equation 1 written as is = E1 for equation 2 reversed E for E2 = -0.13 E1 + E2 = 0.35 + (-0.13) = ??
Wednesday, September 15, 2010 at 4:06am by DrBob222

Chemistry
please help! Is RTP in chemistry (thermochemistry and electrochemistry) referring to room temperature of 25degreeC (or 298K) and 1atm, or 20degreeC (293K) and 1atm? In my lecture notes on gas law, they stated RTP refers to 25degreeC, but in my electrochem lecture notes they ...
Sunday, November 6, 2011 at 4:57am by Hailey

chemistry-electrochem
Dr BOB, i just spoke to my lecturer and he says to use reduction potentials and half equations + Ecall=Ered(cathode)+Ered(anode). so i get half equ: 2Br->Br2+2e- E=-1.065V I2(s)+2e- -> 2I- E=0.536V from this i get Ecell=-1.601V but i dont know where to go from there?
Thursday, September 16, 2010 at 6:48am by lucylu

chemistry- electrochem
A cell can be prepared from copper and tin. What is the E° cellfor the cell that forms from the following half reactions? Cu2+(aq) + 2e-Cu(s) E° = 0.35 V Sn4+(aq) + 2e- Sn2+(aq) E° = 0.13 V a. 0.48 V b. 0.22 V c. -0.48 V d. -0.22 V
Wednesday, September 15, 2010 at 4:06am by lucylu

Chemistry
What's the difference between a galvanic and electrolytic cell when trying to find which half-rxn is the anode or the cathode? So like when you have two equations, depending on what kind of cell it's in, how can you tell which one is the anode and which one is the cathode? I ...
Tuesday, April 13, 2010 at 9:29pm by Nikki

Chemistry/Electrochem
A concentration cell is built based on the following half reaction: Zn(2+) + 2e(-) > Zn E(o)=-0.761 Using two pieces of zinc of electrodes (each 100.0 g), two Zn(2+) solutions, 0.101M and 0.427M (both exactly 1.00 L in volume), and all the other materials needed for a ...
Monday, October 1, 2012 at 2:32pm by Andres

chem- electrochem-HELP
got my questions meixed up! I have tried this one by getting the 3 half-rxn and adding them up. then using E=E*-RT/nF InQ. i get close to an answer but not exact. i get 0.088V
Saturday, September 18, 2010 at 9:29pm by lucylu

chemistry- electrochem
Given a cell based on the spontaneous reaction 2AgCl(s) + Zn(s) ® 2Ag(s) + 2Cl– + Zn2+ If the zinc ion concentration is kept constant at 1 M, and the chlorine ion concentration is decreased from 1 M to 0.001 M, the cell voltage should increase by 0.06 V increase by 0.18 V. ...
Friday, September 17, 2010 at 9:15am by lucylu

chem- electrochem-HELP
I responded to this recently by saying you needed to clarify what these numbers are. I have no idea what they mean. That may explain why no one has answered you because no one can figure out to what these numbers refer.
Saturday, September 18, 2010 at 9:36pm by DrBob222

Chemistry, electrochem
(1) Half-reactions are written as ______ reactions with charge and mass balanced. (2) Among the ions, Cd^2+, Pb^2+ & Ca^2+, ________ has the greatest ability to reduce to its neutral metal. (3) Among the neutral metals; Pb, Ca & Cd, ________ has the least ability to oxidize to...
Sunday, May 11, 2008 at 6:08pm by Terry

Chemistry/Electrochem
Consider a cell at 255 K: line notation Pb-Pb2+(1.27M)--Fe3+(2.29M)-Fe Given the standard reduction potentials calculate the cell potential after the reaction operated long enough for Fe3+ to have changed by 1.432M? I know that Fe3+ is the cathode which will decrease in ...
Monday, October 1, 2012 at 2:17pm by Andres

chem- electrochem-HELP
Determine the equilibrium constant, Keq, for the reaction 5.3 10–19 18.30 1.7 1054 1.9 1018 5.7 10–55 i have tried this but get the wrong answer. i have the half-rxn and fugured out E=0.536. then used eq dG=-nFE, followed by dG=-RTInK. PLS HELP
Saturday, September 18, 2010 at 9:36pm by lucylu

chem- electrochem-HELP
thank you so much. I stuffed up at the start. i had 3 half-rxn. i didnt see that there was one for AgCl- it all makes thank. thankyou for your patience, It appriciated. I had to cram this subject in to get this assignment done. we are not supposed to start this topic til ...
Saturday, September 18, 2010 at 9:29pm by lucylu

Science
Thank you for using the Jiskha Homework Help Forum. Try the following; 1. (Wikipedia): http://en.wikipedia.org/wiki/Electrochemical_cell 2. http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/electrochem.html 3. (Broken Link Removed) 4. http://chemed.chem.purdue.edu/genchem/...
Wednesday, May 28, 2008 at 7:41pm by SraJMcGin

electrochem
Between Mg and Zn which one is the anode and which one is the cathode? And between Mg and Fe which one is the anode and which one is the cathode? Please and thank you. im so stuck. :/
Monday, April 8, 2013 at 11:02am by shyanne

Science
These sites should get you started on your way to knowing everthing about this subject. http://volcano.und.edu/vwdocs/minerals/bauxite.html http://www.mii.org/Minerals/photoal.html http://www.elmhurst.edu/~chm/vchembook/327aluminum.html http://www.wmrc.uiuc.edu/info/...
Thursday, April 17, 2008 at 1:17pm by Ms. Sue

chem- electrochem-HELP
right then, numbers are- Br2 + 2e- = 2Br E=1.065V I2(s)+ 2e- = 2I- E=0.536V i have placed both these numbers into eq- Ecell= Ered(cathode)-Ered(anode) but for every combination, using the before mentioned eq, i cannot get any answers that they offer. If E i get either +/- 1....
Saturday, September 18, 2010 at 9:36pm by lucylu

chem- electrochem-HELP
Given a cell based on the spontaneous reaction 2AgCl(s) + Zn(s) ® 2Ag(s) + 2Cl– + Zn2+ If the zinc ion concentration is kept constant at 1 M, and the chlorine ion concentration is decreased from 1 M to 0.001 M, the cell voltage should increase by 0.06 V increase by 0.18 V. ...
Saturday, September 18, 2010 at 9:29pm by lucylu

Chemistry
Hey, can you help me on this question: Question: A 2.3 kg iron object is placed in an oxygenated tank of 1.00 mol/L hydrochloric acid. What volume of hydrochloric acid would react to completely consume the iron object? My question: when I seperate the H and Cl, and make the ...
Monday, July 17, 2006 at 5:00pm by Dave

Chemistry, electrochem
I write half reactions as oxidation reactions if that is the way they go in the system or as reduction reactions if that is the way they go. But if the problem is not addressing a specific reaction but the table of potentials, those are written as reduction reactions.[This has...
Sunday, May 11, 2008 at 6:08pm by DrBob222

Electrochem
A baby's spoon with an area of 6.25 cm^2 is plated with silver from AgNO3 using a current of 2.00 A for two hours and 25 minutes. a) If the current efficiency is 82.0%, how many grams of silver are plated? b) What is the thickness of the silver plate formed (d= 10.5 g/cm^3)? I...
Saturday, May 12, 2007 at 6:16pm by Keith

chemistry
How do you make a venn diagram of the 6 branches of chemistry? (Inorganic chemistry, organic chemistry, biochemistry, nuclear chemistry, physical chemistry, and analytical chemistry) like where would they go in the 3 circles
Sunday, August 26, 2012 at 10:10pm by jake

Electrochem
I have a table of standard potentials in water that gives a number of reactions and their e*reduction. Say I'm looking for the reaction Al(s) --> Al+3 + 3e-, but the book gives me the reaction Al+3 + 3e- --> Al(s) and a E*red value of -1.68. If this were to react with ...
Wednesday, June 6, 2007 at 8:05pm by Kim

chem- electrochem-HELP
Look up E* for Zn (as written). I find 0.763. Look up AgCl(s) + e ==> Ag(s) + Cl^- (as written). I find 0.222 Add to find E*cell. I find 0.985 Then Ecell = E*cell -(0.06/n)log(products/reactants). Ecell = E*-(0.06/n)log [(Zn^+2)(Ag)^2(Cl^-)^2/(Zn)(AgCl)] Now substitute for ...
Saturday, September 18, 2010 at 9:29pm by DrBob222

Electrochem
An electrolytic cell produces aluminum from Al2O3 at the rate of ten kilograms a day. Assuming a yield of 100% a) how many moles of electrons must pass through the cell in one day? b) how many amperes are passing through the cell? c) how many moles of oxygen (O2) are being ...
Sunday, May 13, 2007 at 3:58pm by Keith

chemistry
No one person "invented" chemistry. Chemistry is an evolving science. Chemistry is conceptual.
Sunday, December 6, 2009 at 10:53am by DrBob222

Electrochemistry
I have an electrochem based question. I'm trying to solve for E* based on a chart in my book. I know the equation for solving this is E*= E*ox + E*red. The chart in my book gives a list of reactions and a E*red value. My teacher told us that the greater, or more positive, E*...
Saturday, May 12, 2007 at 4:01pm by Keith

Chemistry
Is this class beginning chemistry? I did not think freshman chemistry would be discussing hydrogen/metal over potential.
Thursday, November 8, 2012 at 10:23pm by DrBob222

Chemistry
You're cheating on an assignment due for the class Chemistry 1012, your chemistry professor will be notified.
Sunday, February 27, 2011 at 6:19pm by UNBF

AP Chemistry
I am sure if a chemistry teacher comes by you will be helped. I am a physicist and can only answer really easy chemistry questions, sorry.
Friday, January 24, 2014 at 6:21pm by Damon

Chemistry?
About chemistry? Our chemistry tutors aren't online right now.
Friday, July 29, 2011 at 1:18pm by Writeacher

chemistry
I have a chemistry project where I need to make an object move using my knowledge of chemistry. The object os a small ball teh size of a large marble. It must be moved using chemistry and NOT physics (ie slope wind etc). I am 15 and in grade 11.
Thursday, April 8, 2010 at 10:13am by Didier

chemistry/stiochiometry
could someone please answer my chemistry/stoichiometry questions below both "anonymous one just chemistry on todays date
Wednesday, March 16, 2011 at 5:22pm by "anonymous"

Chemistry
The first thing you need to do is take care in the correct spelling of CHEMISTRY. How much chemistry do you need to learn in 3 weeks? High school and college classes keep students busy for at least a year. Some people spend years studying chemistry and earn doctoral degrees in...
Tuesday, November 25, 2008 at 4:35pm by Ms. Sue

statistics
At a certain college, 15% of the students receieved an A in their required math cousre, 10% receieved an A in their required chemistry course, and 5% receieved an A in both. A student is selected at random. a.) What is the probability that he received an A in either chemistry ...
Sunday, October 4, 2009 at 6:06pm by Sharon

Chemistry
haha I'm guessing your studying off the old chemistry multiple choice exam for tommorow's chemistry exam at ryerson?
Thursday, December 13, 2012 at 2:35am by Anonymous

Chemistry
Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?
Thursday, April 19, 2012 at 8:26pm by Mima

Chemistry
Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?
Thursday, April 19, 2012 at 8:27pm by Mima

Chemistry
Correction: (b) If you divide grams by moles you get grams/mole, the molar mass. Comment: No web page makes a good substitute for your chemistry class and your chemistry textbook.
Monday, September 15, 2008 at 6:14pm by GK

DrBob222 please read
Would you recommend me to study for pre-general chemistry first before taking general chemistry? Because I do not remember anything from my chemistry class at all.
Monday, October 11, 2010 at 9:59pm by Advice please

Chemistry (kind of)
Okay so this is actually for an english assignment where we have to report on a problem in our field....mine happens to be Chemistry so I was wondering what kind of problems or disputes can be caused in a chemistry lab...
Friday, February 6, 2009 at 12:46pm by Stefanie

Chemistry
In inorganic chemistry, compounds with OH generally are bases (NaOH, KOH, Al(OH)3, etc). In organic chemistry, an OH attached to a C is an alcohol. -COOH is an acid. C-O-C is an ether. RCOOH = acids ROR ethers RCOOR = esters RNH2 amines RCONH2 amides.
Sunday, June 7, 2009 at 6:21pm by DrBob222

chemistry
There is a lot of chemistry in meteorology but that's only part of the story. There are many other aspects of meteorology than chemistry.
Thursday, March 12, 2009 at 4:18pm by DrBob222

math
500 students sat for an examination in mathematics,physics and chemistry.45 passed all the three subject,60 passed mathematics and chemistry,70 passed physics and chemistry,50 passed mathematics and chemistry,10 passed in mathematics,80 passed in chemistry and 35 passed at ...
Sunday, November 13, 2011 at 3:23pm by damilola

Chemistry
I'm having a hard time getting started studying for my chemistry midterm. i'm kind of overwhelmed. my teacher gave me a brief study guide, but where would be the best place to start? are notecards effective for studying chemistry?
Saturday, January 12, 2008 at 9:20pm by Catie

statistics
At a certain college, 15% of the students received an A in their required math course, 10% receieved an A in their required chemistry course, and 5% received an A in both. A student is selected at random. a.) What is the probability that he received an A in either chemistry or...
Saturday, October 3, 2009 at 8:59am by Sharon

statistics
At a certain college, 15% of the students received an A in their required math course, 10% received an A in their required Chemistry course, 5% received an A in both. A student is selected at random. a.) What is the probability tha he receieved an A in either Chemistry or Math...
Friday, October 2, 2009 at 6:48pm by Sharon

Chemistry
In polymer chemistry, it is often said that obtaining a polymer with certain desired physical properties is often more a problem of engineering than of chemistry. Why is this the case? bgfhftghgfgfnhgf
Friday, September 29, 2006 at 9:23pm by Lindz

Chemistry
In polymer chemistry, it is often said that obtaining a polymer with certain desired physical properties is often more a problem of engineering than of chemistry. Why is this the case?
Thursday, September 28, 2006 at 8:43pm by Lindz

chemistry
Qualitative chemistry tells you WHAT is in the sample. Quantitative chemistry tells you HOW MUCH is there. Most people, I think, use a qualitative measurement to mean that it is approximate.
Thursday, September 10, 2009 at 4:55pm by DrBob222

Math
If you pass general chemistry, then you can take organic chemistry. You pass general chemistry. ˆ You can take organic chemistry. Let P = you pass general chemistry Let Q = you can take organic chemistry I came up with P - >Q P therefore Q But my set up is wrong, how do I ...
Friday, January 21, 2011 at 3:56pm by Madison

general
Hundreds of sites are available but it depends upon what in chemistry you need help with. The easiest thing to do is to go to Google and type in the subject (not chemistry but the area of chemistry). For example, Le Chatelier's principle if you need help with that or gas laws ...
Saturday, October 26, 2013 at 10:42pm by DrBob222

Chemistry
Hi, I have to take chemistry placement test for college this week. Does anyone here have advice for studying to prepare for the test? I took chemistry in high school 2 years ago so I don't remember anything.
Monday, October 11, 2010 at 9:59pm by Advice please

chemistry
You are in great trouble. You are not taking notes, nor or reading the text, and yet you are taking chemistry. Look up Molarity. You will fail chemistry if you do not know about Molarity, M. M=molessolute/literssolution=3.51/1.2= you do the division.
Monday, March 5, 2012 at 8:44am by bobpursley

chemistry
No. Organic chemistry is over run with resonance structures. Most polyatomic ions in inorganic chemistry as well as many compounds have resonance structures.
Sunday, November 11, 2007 at 1:19pm by DrBob222

Physical Science
Physics + Chemistry = Physical Chemistry Biology + Chemistry = Biochemistry Organic Chemistry+Geology + Chemistry = Geochemistry Astronomy + Physics = Astrophysics Biology + Geology = Paleontology Geology + Astronomy = Astrogeology Biology + Astronomy + Physics = Astronautics
Friday, June 15, 2012 at 6:48am by Elena

Dr.Bob - Question
I have just 1 year left before I graduate with another degree that is science related. It is not in chemistry but I have taken almost all of the chemistry classes that are usually taken by a chemistry major. (excluding inorganic and other more specific chemistry classes)There ...
Saturday, June 27, 2009 at 6:04pm by ~christina~

ap chemistry????
None of our tutors is expert in "ap." If this is a chemistry question, you should have indicated that so that a chemistry expert could help you.
Monday, October 1, 2012 at 8:30pm by Ms. Sue

Dr.Bob - Question
For a chemistry major, a good college chemistry curriculum should be consistent with recommendations of the American Chemistry Society (ACS). Here is one of them to look at: http://tars.rollins.edu/chemistry/Courses/ACS_Major.shtml If you do not have a chemistry major already ...
Saturday, June 27, 2009 at 6:04pm by GK

Chemistry
hello, I am in General, Organic Chemistry now and I havent had chemistry since 10th grade. (im 21 now) I barely remembered anything but I would strongly suggest going over conversions such as millimeters-inches and also learning things like the lewis structure. We are ...
Monday, October 11, 2010 at 9:59pm by nicole

Chemistry
Compare the natural chemistry that takes place in the environment with the chemistry that takes place due to manmade factors like pollution. Discuss the effect of pollution at the local, regional, national, and global level.
Monday, February 20, 2012 at 4:46pm by Jenn

ap chemistry
I have taken ap chemistry but I have language barrier and sometimes I don't get it and I am getting behind.We are already in chapter 9.I don't want to quit. What is the best way to improve and learn faster?Any practice I should do?What is the experience taking ap chemistry ...
Sunday, November 4, 2012 at 4:07pm by zoya

Chemistry
Here is a worked example of a stoichiometry problem. You will have many of these in a chemistry course. Bookmark this page so you can refer to it as needed. Most stoichiometry problems are alike. http://www.jiskha.com/science/chemistry/stoichiometry.html
Saturday, June 25, 2011 at 2:39pm by DrBob222

Ap chemistry
I'm taking ap chemistry also! I was just wondering about how much space they give you on an ap chemistry test the Multiple choice section, is it enough space for work? Do they give you scrap?
Sunday, October 5, 2008 at 8:07pm by Jaqui

Chemistry
Chemistry touches you all day, every day, and in more ways than we can write in a few minutes. Chemistry is responsible for the plastics we use, for the cars we use, for the medicine we take, for the food we eat, for the clothes we wear, for the paper you write on, for the ink...
Monday, November 3, 2008 at 7:10pm by DrBob222

chemistry
Describe the differance between chemistry and chemical technology. Technology is the making of applications. Chemical technology...making chemicals for practical or commercial purposes. Chemistry...the study of materials, their reactions
Tuesday, August 16, 2005 at 4:41pm by Jane

grd 12 U chemistry
Hi, i have a project for chemistry, i have to choose a scientist (i chose Micheal Smith) his career is biochemistry and i have to create a career related to biochemistry.. Question: After finding the famous chemist and then using their field of chemistry, create a career that ...
Saturday, September 28, 2013 at 9:58am by Sky

Grade 12 University Chemistry
Hi, i have a project for chemistry, i have to choose a scientist (i chose Micheal Smith) his career is biochemistry and i have to create a career related to biochemistry.. Question: After finding the famous chemist and then using their field of chemistry, create a career that ...
Saturday, September 28, 2013 at 1:10pm by Sky

just wondering...
what is harder, chemistry or physics? because i've been struggling all year in chemistry and i'm taking physics next year... i have a solid a in alg.2 though... oh yeah, and i want to be a physical therapist. so if i'm not to good in chemistry can i still be a physical ...
Thursday, May 29, 2008 at 10:18pm by sfdsajflkd

Chemistry
To really answer this question one must have read the original story AND know some chemistry. I know some chemistry but NEVER read the story. (It is interesting to me that teachers try to make chemistry more interesting by inserting uninteresting details which end up confusing...
Monday, April 26, 2010 at 10:13am by DrBob222

Chemistry :)
Thanks:) Can you please help me with my other chemistry question. I posted it down below! Thank you so much:)
Monday, January 28, 2008 at 3:29pm by Miley

Chemistry
Chemistry is the school subject here, not "acton high." Assistance needed.
Wednesday, September 24, 2008 at 4:22pm by Writeacher

chemistry A level
Ph. D. in chemistry from Missouri University (a long time ago).
Friday, December 5, 2008 at 4:56pm by DrBob222

chemistry
Where would you find iron II sulphide outside a chemistry laboratory?
Saturday, January 10, 2009 at 10:17am by Nabiha

10th grade chemistry
why would a firefighter or a reporter need to understand chemistry?
Monday, April 6, 2009 at 6:44pm by Anonymous

chemistry
I am doing stoicheometry and I need help. Is there anyone who knows about it? It's in my chemistry class. HELP! I am in tears and cannot figure this out.
Tuesday, March 2, 2010 at 6:06pm by Rachel

Chemistry
read the text book, chemistry by raymond chang chapter 14
Monday, November 1, 2010 at 12:14am by Prince

Chemistry??
I assume the subject is chemistry. Just trying to help you get answers more quickly. :-)
Tuesday, November 23, 2010 at 12:26pm by MattsRiceBowl

Chemistry
Please don't change screen names. We know that you've posted a succession of chemistry questions.
Tuesday, November 30, 2010 at 10:18pm by Ms. Sue

Chemistry
Why was Wohler's synthesis of urea significant to the field of carbon chemistry? Please help. Thank you.
Monday, January 24, 2011 at 9:15pm by John

science/chemistry
I have no idea. This is a chemistry question, and it's not an area I know much about.
Wednesday, February 16, 2011 at 6:39am by Writeacher

Chemistry II
Why is YBa2Cu3O7 a super conductor? Explain Chemistry and Structural bases.
Wednesday, February 16, 2011 at 7:10pm by Brittney

chemistry
1 gram = 1 mL https://chemistry.twu.edu/tutorial/MolFractSum.html
Thursday, April 28, 2011 at 11:08pm by TutorCat

chemistry
Thank you, Dr. Bob! Wish YOU would have written my chemistry book!
Saturday, December 3, 2011 at 10:12pm by Lisa

chemistry
answers to latenite labs chemistry lab#9 stoichiometry by loss of CO2
Thursday, January 19, 2012 at 12:58am by Anonymous

chemistry
ohh thats def the nth root of go to hell and chemistry sucks
Tuesday, February 7, 2012 at 2:38pm by Anonymous

chemistry
I need some help with making a solubility rule for CrO4 -2 for my chemistry homework.
Sunday, April 1, 2012 at 11:42am by Debbie

Chemistry PLZ HELP!!!!!
I'm 16 and graduating in May. But im in advanced chemistry i dont know why but i am :) Thanks again.
Monday, April 9, 2012 at 3:03pm by Maci

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