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September 1, 2014

Search: Chem- REALLY URGENT!!!

Number of results: 15,337

Literature
Can someone help me on this? its really urgent. what is Foil Character and Background Character? please don't give me the stage meaning just fiction. thanks. its really urgent.
January 8, 2009 by Akitsuke

chem
I have a really urgent question. I am wondering wheter or not esters are polar and what types of intermolular forces they have. can anybody answer this question nvm
December 19, 2006 by steff

ENGLISH URGENT !!!!!!!
What are good things to buy for a 17 year old boy that are not that expensive???? this is really urgent for a part of my english project..... pleeeeeeeeeeeeeeeeeeeese help!!!!!!!
December 20, 2012 by Jules

REALLY REALLY URGENT
What are some problems children face at school and in general as students
February 9, 2009 by Kerry-Ann

chem help urgent!
i only have one submission for these and i dont' really know how to tell which one has the higher boiling point. can you help? Of each pair of solids, which one has the higher melting point? Kr(s) or Cu(s) and.. CCl4(s) or SiCl4(s)
March 1, 2011 by Rebekah

computers lies or truth VEY URGENT
I saw a website that said the world will end in 2015. Is this true or not? I'm getting really really scared.
November 14, 2012 by Anonymous

chem urgent!!
At a temperature of 35 °C, fluorine gas effuses through a pinhole at a rate of 8.7 L s−1. What is the speed of the fluorine as it effuses through the pinhole? i no u use the eq. 3rt/M ^.5 but i get 20 for the answer but it is really 450.
June 11, 2008 by sam

English (urgent)
can you give me 4 examples of informative texts..or websites where can I look for informative texts--4 paragraph informative texts...(i need it now)really urgent...please...
February 10, 2013 by daphnie

English
Writeacher, I'm still working on my paragraph on the presentation of the Irish school. I really hope you'll be there in three hours' time to check if everything is OK. By the way, can you suggest a website, on which (?) phrasal verbs are grouped according to their topics? It's...
March 25, 2012 by Matthew

Ancient History URGENT Akhenaten
HI Are there any good journal articles on Akhenatens personal aims? What he hoped to achieve. So far all I have is one sentance in a book saying he wanted to do away with the power of the priests of Amun. This is really urgent. My state library is offline and not responding so...
May 25, 2011 by HELP plz

GEOGRAPHY (URGENT!!!)
I NEED HELP!!! this is urgent!!! Human-Environmental Interactions: how did the people in Khartoum modify the environment? how is the people in khartoum being influence by the physical landscape/environment? sorry my grammar sucks i have other questions but i really extremely ...
November 18, 2010 by NEED HELP URGENT!!!

Chem Urgent!
What is the number of grams for 1 mol lead?
February 20, 2008 by Lisa

Chem Urgent!
I need help in balancing equation for NO2 + O2 -> NO + O3 Please help...
March 15, 2008 by Lily

CHEM..URGENT!
What is produced at each electrode in the electrolysis of NaBr(aq) and AgF(aq)?
March 30, 2009 by H

English-URGENT-HELP NEEDED!
Can ANYONE please help me by going to either the very bottom of this page or the top of the next and click on "English-URGENT-HELP NEEDED!"? I really need some help on that one and I'm afraid no one will find it and I'll have to keep posting it over and over. THANK-YOU ...
August 26, 2007 by Anonymous

urgent urgent urgent
what is the chemical make up of actin and myocin
February 8, 2013 by zachary

Chem Urgent!
How do I determine the number of moles for the substance: 3.5 x 10^23 molecules H2O?
February 26, 2008 by Lisa

Chem Urgent!
How can I divide this answer Pb2(SO4)2 it needs to be simplified by 2)?
February 28, 2008 by Lisa

Chem II (urgent plz)
Consider a titration of 50.00 mL of 0.1005 M HCl with 0.1012 M NaOH.
July 17, 2007 by Jessie

Chem Also Urgent!
How do I determine the number of grams for the following substance: 2.40 mol O2?
February 26, 2008 by Lisa

chem (urgent)
Can someone please explain to me in simple terms what the eutectic point and temperature are?
September 16, 2011 by laura

English Language
I asked this question earlier. I need to write 2 letters of complaint about problems I face at school and problems I face as a student in general but I can't find any problems, could you help me list some problems? Its really really urgent.
February 9, 2009 by PLEASE HELP ME!!!

Urgent for Chem!
need help in balancing equation for NO2 + O2 -> NO + O3 Please help it may look balance but it is not. This is a tricky one
March 15, 2008 by Anynamous

CHEM URGENT
Determine the ionization energy of a hydrogen atom (in kJ/mol) if the electron is in its ground state
January 17, 2009 by henry

Chem Help!
I really need help with this question for my chem H.W. 1) On a summer day in Breckenridge, Colorado, the atmospheric pressure is 525 mm Hg. What is this air pressure in atmospheres? (round to the hundredths place) atm
April 10, 2008 by Lisa

1 question, really urgent
if its 12:30pm in vancouver what time is it in Goose Bay labrador
March 19, 2013 by Polly

math urgent urgent urgent
perpendicular to line -2x+y=7 contains the point (-4,-2) the equation of line is
November 30, 2012 by zach w

math urgent urgent urgent
x+2y=12 find intercept a circle equation x^2+y^2+4x-4y-1=0 and graph 2)find domain and range f(x)=x^2-4x-5 find vertex of f(x) =x^2+4x-21
December 1, 2012 by zach w

Chem- REALLY URGENT!!!
2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation: CH4 + NH3 + O2  HCN + H2O You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions: • What is the ...
December 19, 2012 by Taylor

Chemistry - Urgent
Determine the mass of 3.16 ×1023 atoms Cl. Answer in units of g. How do you do this? Need to get it done really fast. Thanks for help.
October 11, 2009 by Jacob

Organic Chem (URGENT)
What is the monomeric unit of a chain of molecules joined by peptide bonds? Answer:?? If anyone can help with this question. Thank you very much.
January 26, 2011 by John

Urgent Chem Help
A certain substance has a heat of vaporization of 55.30 kJ/mol. At what Kelvin temperature will the vapor pressure be 3.50 times higher than it was at 361 K?
February 10, 2013 by Carl

urgent urgent urgent
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. explain the process the muscle go through
February 6, 2013 by zachary

Chemistry
A solid metal is often known as having 'an array of positive ions in a sea of electrons'. Write down the electronic structure of magnesium atom and use it to explain what this phrase means. Actually I don't know how to explain it. So I need you to explain it in your own words...
December 4, 2009 by Eman

URGENT CHEM
Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) numbers in parenthesis means the charge
January 18, 2009 by max

Physics
Simple Harmonic Motion With the equation x=Acos(2 pi f) t why and how does f affect x This is really urgent! Thanx for any help! frequency determines how rapidly x oscillates.
May 17, 2007 by Claire

urgent urgent urgent
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. •Explain the chemical process that occurred in ...
February 7, 2013 by zachary

math urgent urgent urgent
1)let f(x) be a polynomial function explian how to use the factor theorem to check if (x-c) is a factor of F(x) 2) use synthetic division to factor X^2-2x^2-9x+18 completly
November 30, 2012 by zach w

Urgent Chem Help someone plz
Calculate the mole fraction of the solute in the following aqueous solutions 3.25% ethanol, by volume (d= 0.993 g/ml ; pure C2H5OH, d= 0.789 g/ml )
January 24, 2009 by Casandara

CHEM URGENT!!
If a cube with edges of 1.000 cm weighs 25.68 g, what would the mass of a cube of the same material with sides 2.63 cm in length be?
January 16, 2009 by matt

CHEM organic chem
i am really confused! i am doing the production of ethene from fractional distillation and i understand the whole concept of it what i don't get is how i can write a balanced eqn to show how ethene can be produced from C14H30 (tetradecane?!) i did C14H30 ------> C7H14 + ...
November 13, 2007 by AllyKat

CHEM organic chem
i am really confused! i am doing the production of ethene from fractional distillation and i understand the whole concept of it what i don't get is how i can write a balanced eqn to show how ethene can be produced from C14H30 (tetradecane?!) i did C14H30 ------> C7H14 + ...
November 13, 2007 by AllyKat

English language
what could be an example of something that is urgent but is not important? and something that is important but not urgent? these questions refer to daily actions or well any actions, i have absolutely no idea how to answer that. Sure doesn't urgent and important meant almost ...
November 29, 2011 by Caroline

Science (urgent)
Hi I really need to know this I've asked a couple times but haven't gotten an answer yet. In the reaction X + Y ® Z, Z is the A) substrate. B) product. C) enzyme. D) carbon molecule.
October 26, 2011 by Jake

CHEM URGENT
Infrared, ultraviolet, and visible radiation are all part of the electromagnetic spectrum. Arrange the three types of radiation in order of increasing energy.
January 17, 2009 by james

AP CHEM (URGENT)!!!!!
How can ionization potential and electron affinity be used to predict whether or not a simple synthesis reaction will occur between a metal and a non-metal.
November 2, 2011 by Valm

Another Algebra (urgent!)
Find A if the graph of the equation Ax + 3y = 5 is parallel to the graph of 5x - 2y = 4 I tried to solve the problem, but I couldn't really get a good answer. Thanks!
January 14, 2009 by Bella

English
Can you check this sentence, it's really urgent. Before sending you details of my credit card, I would like you to confirm the offer made to me by Mr Smith, your Reservation Executive.
June 3, 2011 by Henry1

chemistry
Which of the following species exhibits resonance if all the formal charges are minimized? a. OF2 b. N2 c. PCl5 d. ClO3- e. BrF3 plz help me out here. its really urgent!!!
September 22, 2011 by icecream

Math urgent
explain how to compute the xy term of the product (3x-4y)^2? if possible with solution please.... its urgent
September 7, 2008 by Ayushma

Ksp/Ka Questions-Chem
I really don't understand how to set this up. Any help is really appreciated! I really don't quite understand how to set up a caluculation to figure out whether a precipitate will form and i'm struggling with the second half too! When 25.75 mL of 0.00826 M lead II nitrate is ...
April 8, 2008 by Sigurd

egypt
urgent!!!!urgent!!!!!! have to go to bruins game at 5:45whats the magical fiqures inbetween the rapping in a mummy?
January 29, 2009 by lilgeeny245

Venn Diagram (URGENT)
What are 6 similarities between Canada and Haiti? 1. French Influence 2. 3. 4. 5. 6. Please someone help, this is urgent. thank you.
April 30, 2009 by John

MATHS! URGENT!
describe how each sequence is generated and write down the next two terms: a) 40 41 43 46 50 55 b)90 89 87 84 80 75 c)1 3 7 13 21 31 d) 2 6 12 20 30 42 PLEASE HELP its urgent!
September 29, 2010 by Ami

TO DrBob222 or any science helper
identify the following formulas as acids, bases or salts: HCH3COO NaCL H2CO3 C6H8)7 Mg(OH) NaOH KBr Sr(OH)2 HNO3 please help really urgent :) thanks :)
March 12, 2014 by Anonymous

science-urgent
What are differences between Continental Drifts and Plate Tectonics? I need at last 4 for each. Please help its urgent!!!!! Thanks a bunch! Ellie
November 24, 2008 by Ellie

Chem Midterm Review
Ok, so I've been really busy with midterms and my chemistry one is tomorrow. Now, I never intended to let so much time slip by before i started studying, but it happened. It's one of my most important exams. Do I still have a chance of passing? If so, how should I attempt to ...
January 16, 2008 by Matt

Chem
A 10.0% by mass H2SO4(aq) solution has a density of 1.07 g·cm-3. How many milliliters of solution contain 8.34 g of H2SO4? What mass (in grams) of H2SO4 is in 248 mL of solution? It's been a while since I have had a chem class...so sorry if this seems really easy I just don't ...
February 15, 2010 by Cairy

chem urgent
Calculate the mass ( kg ) of the solute benzene and the mass ( kg ) of the solvent acetone that should be combined to generate 1.51 kg of a solution that is 0.275 m benzene.
February 6, 2009 by henry

English
I forgot to add these few more things. They are really urgent. Thank you. 1) I told my collegues about the possibility of carrying out a Comenius project on how to write the screenplay and shoot (make) a film. 2) As a matter of fact, they would rather be involved in a project ...
November 10, 2011 by Henry2

English (URGENT)
LQuestion I have to answer: What are the author's reasons for writing this book? How do you know his reasons? Give examples from the novel. I don't really understand that, can someone please clarify. Thank you,
December 18, 2008 by Larry

Geometry urgent!
If the radius of the two areas is 12in find the length of a chord of an arc of 45 degrees, 30 degrees and 60 degrees. I really don't know what to do here! Please help!!
February 12, 2013 by Stephanie

Physics - urgent!!!
A swimmer tries to go straight across a river that is 500m wide. The swimmer can swim at 1.5m/s. There is a current of .05m/s downstream. Calculate a) the actual velocity of the swimmer b) how long it will tale to reach the far shore c) how far donstream the swimmer will hit ...
February 8, 2009 by Sally

chem
hey I am really stumped...I would really appreciate some help with this question 1.0560g of antacid is weighed and mixed with 75.00mL of excess 0.1126 M HCL. The excess acid required 4.68mL of 0.1008 M NaOH or back titration Calculate the neutalizing power of the antacid in ...
October 2, 2007 by Alexa

History reflections URGENT
HELP! Trying to find information on Michael Kaznelson author of Remembering the Soviet State: Kulak Children and Dekulakisation. This is urgent so thanks for all your help.
June 14, 2011 by Em

Gen Chem
For my chem class I have 3 elements and have to find what they are used for today or an interesting fact. I have looked but I can't really fin anything. My elements are: Cobalt,Thulium, and Roentgenium I found that cobalt is used in money (nickels, quarters, and dimes, but ...
October 21, 2012 by Andrea

Org. Chem SOS???
Sorry for re-posting this question but I feel as if it hasnt been read or something. Otherwise does no one really know the answer? I am really going crazy over it and I have only 1 try left. Please What is the lowest energy alternative resonance structure for this compound: ...
January 19, 2010 by Natasha

chem
what does the heating curve of ethanol look like? im really confused about this...
January 21, 2010 by samuel

Career Urgent
people i really need your help i don't know waht are the the negative things being a web designer/developer i thought for more than an hour and i still couldn't figure out what are the neagtive things please help and thank you
May 9, 2009 by T.M.L

CHEMISTRY--URGENT
HNO3 with pH 3 is mixed with 2 L KOH with pH 12. assuming volumes are additive what is the pH of the final solution? I have absolutely no idea how to do this. I do know the answer, though. I have a test tomorrow and I would really appreciate it if someone could help!!!!
May 2, 2010 by Maggie

Chem
Can someone explain in really simple terms the difference between Sigma and Pi bonds?
June 18, 2008 by Alex

chem urgent!!
What is the pH of the solution created by combining 12.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? i need to find the ph with HCL and then with hc2h3o2. i got 1.30 as my anser but this was wrong i multipled all these...
August 20, 2008 by tom

urgent chem help ( dr bob plz)
A particular household ammonia solution (d= 0.97g/mL) is 6.8% NH3 by mass. How many milliliters of this solution should be diluted with water to produce 650 mL of a solution with pH = 11.55? ------------------------- i am gettig 5.3 x 10^-10 is tht rite or worng pzl conform ..
February 17, 2009 by javeya

spanish!!...urgent!...please help
how did the geography influence the migration and exploration of colombia? venezuela? i need websitres for this urgent...please help asap... :(
December 6, 2007 by maggie

Biology- Urgent
1. There is no ____ that is specified by a stop codon on an mRNA molecule. 2. Why is it impostant for RNA polymerase to start at the right place and transcribe in the right direction? I really had no ideas on these two. Please help. Any help is appreciated. Thank you.
December 3, 2009 by Anonymous

Math URGENT REALLY FAST HELP
find the inflection points of the function: f9x)=x^2(ln(x)) Now I don't think there are any inflection points because both intervals are concave up. Am I right, or could someone help me if this is wrong?
April 12, 2011 by Anonymous

Chemistry URGENT/DR BOB
I have a couple of unfinished experiments i need help with as well. If you can help me. Thanking you in advance. If I tested the ph of NaOH and its H+ was 12.2 how would I express this in a power of 10? I really have no clue. Need help.
April 23, 2014 by jazz

urgent alg 1
add or subtract 2 2 (2t -8t)+ (8t + 9t) second question 3 2 3 (t +8t ) + (-3t ) please helpp its urgent i have the answer butt im not suree pleasee helpp
February 9, 2011 by kimberly

Chem please help urgent
why is the formation of a condensation polymer impossible in these cases ? A) ethanoic acid + NH2CH2CH2CH2CH2NH2 B) ethanoic acid+CH3CH2NH2 C) HOOC-CH2-COOH + CH3CH2NH2
February 27, 2013 by K

chem.
I really don't understanf how jameschadwick discovered the neutron. iread websites and read the 18 pg. article but what was his experiment?
December 12, 2010 by tj

studying for chem 2
My professor really likes conceptual problems and that is what we will be tested on. How can I practice concept questions??
September 17, 2011 by Lauryn

chem
---------- A compound has the formula Mg3X2. If 1.87 g of X combines with 4.86 g of magnesium, what is the atomic weight of X? A) 7.0 B) 14.0 C) 21.0 D) 28.0 E) 32.0 ---------- I'm having a really rough time with this one. It seems the total weight is 6.73 g, and that 27.79% ...
September 13, 2007 by manny

GR.10 CIVICS!!!!!URGENT
CAN SOMOENE PLEASE GIVE ME A LINK TO A PICTURE THAT HAS TO DO WITH OR IS RELATED TO ABORIGINALS GAINING THE RIGHT TO VOTE IN CANADA(1960).PLEASE! ITS URGENT.THANKS
May 30, 2009 by LALA

Chem URGENT!
What is the translating word equations for this question: Nickel reacts with lead nitrate to produce nickel nitrate and lead.
March 11, 2008 by Lisa

chem
for the reation: B203 + 3Ca = 2B + 3 CaO how do i attempt to know which 1 is oxidized? I really do not understand chemistry its my weakest subject
November 6, 2007 by Madison

Legal Studies
Hi beautiful people! I need help finding statistics on the rates of incarciration/fines or other punishments for person convicted of victimless crime in Australia. Preferably Queensland. This is urgent, I simply cannot find the information and I would REALLY appreciate your ...
September 5, 2011 by Em

Science Urgent
i know i post this question before but i really need help on this question which have a higher value, iron-containing minerals or feldspars? Why? please help this is my last question i need to answer
September 20, 2009 by Chris

CHEM PLZ URGENT!!
19. A block of aluminum has a volume of 126.5 cm3. Its density = 2.70 g/cm3. What is the mass of the aluminum? A) 342 g B) 46.9 g C) 127 g D) 0.0213 g E) 124 g The answer is A.....But I still can't figure it out....I keep getting D as an answer..
February 22, 2008 by Ania

chem
Give the full set of quantum numbers for the electron lost when a Cs atom ionizes. a. n = 6; l = 1; ml = –1; ms = +½ b. n = 5; l = 0; ml = +1; ms = –½ c. n = 5; l = 0; ml = 0; ms = –½ d. n = 6; l = 0; ml = 0; ms = +½ I am really am not sure but I think its b
November 9, 2007 by Sam

Dr Bobb
where u from r u chem proff... where do u teach .. i like the way u answers u r really gud thnks for ur help bye may God bless u
January 16, 2009 by Inquiry

Earth science..... help urgent
hi can anyone help me? my problem is that i need to write a autobiography about the "LIFE CYCLE OF ROCKS". andf i have no idea how to start it.....plz help me....its urgent....give me some clues how to start !!!!
December 17, 2008 by veronica

Chem Help Pls!
How to sketch Maxwell distributions plots for the following? a) O2 and CO2 at the same temperature b) Ar at 270K and 1000K I really need help with this!
September 17, 2012 by Dia B

Chem Urgent Help ?
I have a lab dis monday .. plz someone help .. Lab Title is (( Recrystallization of a Solid )) Pre-Lab Questions.... Explain the purpose of the following in this experiment. a) using hot filtration b) not cooling (chilling) the hot filtered solution immediately c) washing the ...
November 22, 2008 by Juliana

Trigonometry Urgent!
I am writing a paper on the 8 trigonometric identites but can't find any information on them. Please does anyone know of any websites that would have things like their history, development, applications in ancient times, origins, etc. Please help. Urgent!!!!
March 8, 2007 by kate 316

chemistry urgent urgent
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
January 15, 2013 by zachary

chemistry urgent urgent
... the hiv virus that causes aids destroys the immune system in the body. classify the hiv virus and explain the statement.
January 28, 2013 by zachary

Math Help (URGENT X10)
This is really urgent so please please please help. The height(H) of an object that has been dropped or thrown in the air is given by: H(t)=-4.9t^2+vt+h t=time in seconds(s) v=initial velocity in meters per second (m/s) h=initial height in meters(m) H=height h=initial height ...
April 4, 2012 by Anonymous

CHEM 11
I am really stuck with this... what mass of oxygen is contained in 10.5 umol of chromium(III)nitrate hexahydrate? Can't understand how to convert the micro-moles especially!
February 22, 2011 by lo

Chemistry (URGENT)
T=thickness, V=volume, A=area, m=mass D=density V=m/D Suppose T=V/A is a method used to find the thickness. How may this method be used in finding the size of molecules.? I really need help. Been thinking about it for awhile. Thanks in advance.
November 23, 2010 by John

science
i need to solve this : 1. we should show the chemical structure of oligosaccharide which contains 2 galactoses and 1 saccharose. 2. compare the difference in physical features og dicarboxylic acids and glucose beta chain 3. determine the calorific value of 5g saccharose please...
March 29, 2011 by nina

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