# URGENT Chemistry Question!

83,724 results

### Plz urgent

Can anyone please answer my chemistry question i posted quick?

### 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

### URGENT Chemistry Question!

This might be a silly question, but... Is 6-8 on the pH scale considered neutral? If so, 6.23 pH is neutral and 8.78 should be considered basic. Is this correct?

### urgent urgent algebra

find the composite function fog f(X) = 1/X-5,g(x)-6/x question 2 find inverse, domain range and asymatotes of each function f(x)=3+e^4-x can some one help me please been stuck on these for 2 days need help solving thank you

### urgent urgent urgent

what is the chemical make up of actin and myocin

### 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

### Chemistry, Urgent!

How is this question solved?! When 21.6g of a metal X are burned in excess oxygen, 40.8g of X2O3 are formed. From this data, what is the metal X?

### fractions URGENT!!!!!!!!!!!!!!!

Is 2/3 the smallest out of 1/3? Are you asking if 2/3 is smaller than 1/3? If that's your question, the answer is no. If that's not your question, please rephrase so teachers will understand. Thanks. =)

### 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?

### chemistry urgent urgent

... the hiv virus that causes aids destroys the immune system in the body. classify the hiv virus and explain the statement.

### math urgent urgent urgent

perpendicular to line -2x+y=7 contains the point (-4,-2) the equation of line is

### 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

### Quick Question #2 (URGENT)

How would show/ask 'What is your phone number?' in symbols and pictures. Would having a picture of a telephone and the number sign beside it, and write equal sign then question mark demsonstrate this question? Example: phone pic (#)=? If my idea doesn't demonstrate the ...

### 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

### Chemistry(URGENT!)

determine whether the following salts will form acidic, neutral or basic solutions in water. Na2HPO4 CaNO2 NH4CH3COO Al2SO4 NaF Please, i need the answer to this question within 2 hours of when i post this!

### chemistry urgent

hydrogen gas is collected in a bottle, and the pressure of the gas is 892 torr at 24 °C. what is the pressure of hydrogen gas when the temperature decreases to 20 °C? chemistry - DrBob222, Tuesday, November 30, 2010 at 1:25pm (P1/T1) = (P2/T2) Dear Dr Bob: is this a right ...

### URGENT CHEMISTRY

Which of the following pairs of compounds will give a precipitate in a diluted solution? Question 4 options: A) Cu(NO3)2 and Na2CO3 B) KNO3 and NaCl C) MgCl2 and Ba(NO3)2 D) NH4Cl and Al2(SO4)3 ALL OF THEM ARE SOLUBLE? WHAT DO I DO?

### math-urgent

Sample space ={1,2,3,4,5} p(1)=0.1, p(2)=0.2 and p(3)=p(4)=0.05. Assume that A={1,3,5} and B={2,3,4}. Find p(5). Find p(A^c). I need help with this question. It is a probability question. please help.

### 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

### 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 ...

### 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

### Quick Question (URGENT)

What does this symbol mean (#) thank you

### Chemistry-pls help urgent

Posted by candy on Tuesday, October 12, 2010 at 5:04pm. 1) How do I prepare 2M nitric acid from 65% concentrated nitric acid? 2) How do I prepare 17% ammonia from 25% concentrated ammonia? Please show calculation steps. Thanks. Chemistry -pls help urgent - DrBob222, Tuesday, ...

### 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 ...

### chemistry

URGENT!!! How many grams of sodium benzoate (NaC6H5CO2) must be added to 500 mL of 0.15 M benzoic acid (HC6H5CO2) to make a buffer solution with pH of 5.0? Assume no volume change upon sodium benzoate dissolution. Ka = 6.46 x 10-5 How would I go about this question?

### PHYSICS URGENT URGENT URGENT URGENT HELP NEEDED!!!

A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (b) Work out and add the numerical values of ...

### Chemistry

How do you do the question: react 3.50 g of solid sodium metal with water to produce hydrogen gas and sodium hydroxide. If,at the end of the reaction there is 6.8 L of solution, what is the concentration of sodium hydroxide? This is realy quite urgent. I need to know for my ...

### WAVE CALCULATION QUESTION URGENT!!!!!!!!

Convert 8.6 x 10^13 Hz to nanometers. Assuming this is a light wave, Frequency*wavelength= speed oflight jiko like question jiko know all. ;.)

### Quick Question

Who is the founder of Quantum Physics? Please help. Urgent.

### math(urgent)

Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +.... Answer this Question

### Health

Sometimes a patient needs additional care that his or her regular physician cannot provide. In this instance, the physician can make a referral for a patient to see another physician. What are the three types of referrals? (1 point) regular, urgent, fast normal, fast, STAT ...

### Math urgent

explain how to compute the xy term of the product (3x-4y)^2? if possible with solution please.... its urgent

### URGENT Science question

Justin wants to be the captain of an aircraft carrier when he gets out of school. Which subjects should Justin study to help him prepare for this career? biomedical science and meteorology oceanography and paleontology chemistry and biology physics and computer science*** Am I...

### Urgent math question for Reiny

Find the value of the expression below for r=4 and t=2.... t^3-r+20 divided by r 9*** 72 6 40 Ok, Reiny you said my answer9 was originally wrong, however when I looked at the work you did and you put in parenthesis()....my question is why, because the original expression didn'...

### math urgent help needed

the question is: -3x-2z-7 if x=3 and z= -1 i did the the question and got the answer - 14 ....but the answer key that i got say -20....can anyone help me... with this plz....

### egypt

urgent!!!!urgent!!!!!! have to go to bruins game at 5:45whats the magical fiqures inbetween the rapping in a mummy?

### 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.

### 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!

### 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

### Science- urgent-review

what type of galaxy do astronomers consider to be the oldest? It's urgent because I am studying for a grade 9 exam but I don't know what this is.. please help.

### Urgent math help!

What is 66 2/3% of 891? PLEASE show me the steps on how you got the answer to this question...

### Math Urgent 1 tiny question

how would you write (11/20)^-6 as a single power... don't evaluate.

### 1 question, really urgent

if its 12:30pm in vancouver what time is it in Goose Bay labrador

### Chemistry(Please help, thank you)

I have to calculate the concentration of I2 produced (# of moles of I2 produced / L) based on the stoichiometric ratio in the following equation. 2S2O3^2- + I2 -> 2I^- + S4O6^2- Chemistry(Urgent, please help) - DrBob222, Sunday, February 26, 2012 at 9:47pm If you know the ...

### Chemistry

Please,tell me the ways I can use to understand chemistry better.I need help,and it is urgent because am starting to drop.

### PLEASE VIEW- URGENT!

I do not understand this question. Could you please explain? "Beneatha is particularly bitter, but Ruth defends Walter. What does Ruth say?" (Act III, SceneI) For Further Reading * A Raisin in the Sun - SraJMcGin, Monday, September 3, 2007 at 7:36pm I remember answering this ...

### chemistry urgent urgent

Analyze the properties of a sodium atom and a sodium ion. What are the differences in mass, stability, and reactivity that are caused due to the differences between the sodium atom and sodium ion?

### math question 3- very urgent !

Find x* on [0, 2] such that f(x*) equals the average value of f(x) = 5x + 9 over [0, 2].

### Chemistry(Urgent, please help,thank you)

After performing a freezing point depression experiment I had to find the molecular weight of glycol. Now I have to answer the question what value did I assume "i" to equal and why did I make this assumption. My teacher told us the value of i to use for this was 1. I am not ...

### chemistry

Urgent. The melting point of pure acetylsalicylic acid is 135 degrees celsius. Comment on the purity of your product based on its melting point range. My melting point range was 105-115. I do not even know where to start for this question. Could you please help?

### 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.

### physics

damon,reiny,steve,ms sue.plz get a solution 2 my question please itz urgent!!!

### Urgent Chemistry question!

How do i combine 2 half ionic equations into an overall equation?? 4OHˉ → 2H2O + O2 + 4e 2H+ + 2e → H2 *The "H+" is the hydrogen ion The correct overall equation is 2H2O → 2H2 + O2 How do i get that???

### Math - Urgent

I'm sorry I need 1 more question to be asked. Use the LCD to write equivalent fractions. 5/6 , 2/9

### urgent spanish one question

is this correct grammar - si, ponemos nuestra los vestidos en la habitacion del hotel?

### 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... :(

### chemistry

I need help with this question. the question. ask to complete the following relationship between units. question a.___g= 1Gg how would answer a question like this.

### 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!!!!!!!

### 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.

### Math-urgent-mid term exam review question

Please help me simplify. I keep getting some weird answer. 3x^2(4x^3-2x^2+6x)-(x^5+5x^4-4x^3)+7x^5

### 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

### chemistery lab..urgent

hi..can someone hwlp me out here on how we can calculate the moles of H2T(phthalic acid)?? its urgent for my lab this evening 1:00pm friday

### CHEMISTRY: URGENT DRBob222

Why was the reaction mixture titrated quickly? (question fom: A mixture of 0.50 mol of ethanoic acid and 1.00 mol of ethanol was shaken for a long time to reach equilibrium. The whole mixture was titrated quickly with 1.00 mol dm3 sodium hydroxide and 80cm3 of alkali were ...

### Social Studies (URGENT)

10. Why did many Native people start adapting to Victorian society? Can someone please help me answer this question? Thank you very much.

### To ANY SCIENCE HELPER URGENT

1. Describe 2 methods of viral infection 2. How can a virus be helpful to its host? Please this is very urgent, I have finished everything else but these r my last 2 questions that I don't know! Please help! Thanks:)

### chemistry

please me,,,,,its urgent...what is the structural formula of the toxaphene?

### chemistry

please me,,,,,its urgent...what is the structural formula of the toxaphene?

### English-urgent

1) This puts the integrity of the material into question. or 2) This puts the integrity of the material in question. Which is correct?

### Criminal justice

Can someone please help. Who is responsible for the concept of crime prevention? Ive been stuck on this question for two days and i need help urgent. Thank you!

### Math - Urgent!!!

Write the equation of the hyperbola for which the length of the transverse axis is 6 units long anf the foci are at (0,5) and (0,-5). Someone please help me with this question. Thanks in advance.

### URGENT language arts question~!

Which of the following compound words is spelled incorrectly? (1 point) afternoon teamate masterpiece earring My Answer: 1)B Is this correct? .

### Chemistry

Please help me with this chemistry question? I am working on a lab report and I am stuck on this question: Use the concept of stoichiometry to explain why balanaced equations are necessary when performing calculations in chemistry. Propose a situation where precise amounts of ...

### Trig

URGENT, Please answer this question: give the value of: Tan(Arctan x+1/x-1+Arctan x-1/x)

### Math

URGENT! In a school, 8% of students are left handed. If 50 classes of 20 students are randomly selected, what is the probability of 10 classes have no left handed students? I know that this is a binomial distribution question, but I can't seem to do this question even though I...

### 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 !!!!

### chemistry

urgent help needed!!! what is .0966 rounded to 2 significant digits? and why?

### Chemistry URGENT!!

Which anions have the largest and smallest radii? Thank you!!

### English (Urgent)

How many Native Americans are here inn the world now? I did a google search, but I can't find my answer still, so can anyone please help me out wih this question? Thanks.

### GEOL12 (urgent)

i have one simple question i need answering. Is the internal structure of a Composite, Cinder Cone, and Shield volcano are the same? please help and thank you

### geology (urgent)

i have one simple question i need answering. Is the internal structure of a Composite, Cinder Cone, and Shield volcano are the same? please help and thank you

### physics(URGENT!!!!!)

EDXers!!! Plz help with MITx 8.01x I don't know how to solve HW8 Problem 3 Question c) Can anybody help me???? Explain Plz

### 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!!!!

### URGENT Chemistry question

a chemist wanted to make 100 grams of SO2. She had only 12 grams of sulfur and 4 grams of oxygen. Unfortunately, the amounts of reactants were not enough to make the desired product. How much S and O2 would she need in order to obtain the desired grams of product with no ...

### Chemistry 101-URGENT

How much heat is required to melt 43.5 g of ice at 0°C?

### CHEMISTRY (URGENT!!!!)

What is the Keq of NaOBr dissolving in water if the Ka of HOBr dissociating is 6.4*10^-6

### Chemistry URGENT

Help. what is the formula to figure out the total mass of a solution?

### organic chemistry

What is the negative part reagent in the markovnikov's rule ? It's urgent ...

### Chemistry URGENT! I really need help!

Consider the following reaction occurring at 298K BaCO3(s)-> BaO(s) + CO2 (g) show that the reaction is not spontaneous under standard condition by calculating delta G rxn. I calculated delta G and got 219.7 kJ, now the question asks if BaCO3 is placed in an evacuated flask...

### Math Question

A bread recipe calls for 1/3 cup of butter. You want to make 1/2 of a batch. How much butter do you need? A 1/6 B)2/3 C)1/3 d) 1 1/2 Please help Its urgent!! Thanks!

### AD Analysis (URGENT)

I have to do an ad analysis on alcohol and I've decided to use a GREY GOOSE vodka ad. Here's the question I'm having trouble with. Why do you think the person who created this ad has presented substance use in this way? I don't know how to answer it. All I can think of saying ...

### chemistry help

our teacher said on our final chemistry lab test there will be a question asking us to convert nanometers to wave numbers, anyone know what the question might be phrased like? also, im not sure i know how to convert, anyone have an example question with the steps?

### 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.

### Math URGENT QUICK QUESTION

factor 9-6x-3x^2 The expression x^2-8x+k cannot be factored if k has the value A.)7 B.)0 C)-7 D)-9 Please show me how to do these questions step by step so that I can understand & learn

### Bob Pursley

Bob: Thank you for answering my Chemistry question. I apologize that it was on there twice. I accidentally posted again the same question instead of a different question. You answered the first question with precision. Thank you

### URGENT chemistry

What pressure is exerted by 0.625 mol of a gas in a 45.4 L container at -24.0ºC

### CHEMISTRY URGENT!

alpha emission by plutonium 242 write a nuclear equation

### Chemistry-Urgent

What is the molality of a solution containing 11.1 g Na2SO4 dissolved in 2269.2 g of water?

### ***Latin Urgent***

As I'm studying these prepositions to be used in the ablative case, I had a question. How do you know when to use a (with a macron) verus ab? What about e (with a macron) versus ex? Thanks for your explantion!

### Calculators- memory?

For the TI-84 plus edition calculators do the programs you created and notes you put on there get deleted once you change the batteries? this is a very urgent question. thank you.