chemistry! URGENT
61,637 results, page 3

Math URGENT
3.8y+4/7x+2=0 Please help me. Thanks 
Math Urgent, please help!
3(42X)=2X 1 1 2 3** Please help, thank you! 
algebra URGENT HELP
A)p(x)= x(x+2)(x4) b)p(x)=(x+2)^3(x1) 
Maths urgent
4^x+4^(1/x)=18 
Urgent Math! Please Help!
2^4 = 2 * 2 * 2 * 2 =16 
algebra
6x+8y=24, 8y6x=2 what is x and what is y? urgent! thanks:) 
Chemistry URGENT
consider the following container of helium at 45C. intially the valve is closed. After the valve is opened what is the pressure of the helium gas. your start points are 2.00 atm and 9.00L. after opening you have 3.oo atm and 3.00L. The answer is 2.25 atm what formula did you ... 
chemistry
silver iodide powder has been used as and antiseptic and as and agent to seed clouds for rain . silver iodide is 45.9% silver by mass . if you separtate a 50g sample of silver and iodide , how much iodide is into its elements, silver and iodide how much silver would you have... 
Urgent chemistry help
is there anything unusual about how the first elements are named when naming the compound? Is there anything unusual about how the second element is named when naming the compound? Why are the elements in the binary compounds combined in different ratios ( as shown by the ... 
ALGEBRA 2 URGENT! PLEASE HELP!
Simplify 8(2^x1)=64 
Algebra 2 URGENT
Simplify: (1)/u^2(2u)/(1)/(u^24) 
algebra 1 honors
If r=5/3r+20/3, what is r? URGENT!!!! 
MATH URGENT!
SIMPLIFY: x^24x3 
Algebra 2 URGENT
Simplify: 1/y^2y2+1/y^2+y 
Algebra 2 URGENT
Simplify: (x)/(x1)(1)/(x+1) 
Algebra 2 URGENT
Simplify: 4s^2(4t)^2 
Algebra 2 URGENT
Simplify: x+2/x^2+x2/2x 
math(urgent)
if x+ y is 25 more than xy then x is what percent of y ? 
Urgent  Please Help!
Does anyone here know anything about bowel movements? 
Algebra 2 URGENT
Simplify: (1)/(z4)(1)/z+4 
Algebra 2 URGENT
Simplify: 4s^2(4t)^2 
Algebra 2 URGENT
Simplify: 1/u^22u1/u^24 
science PLEASE HELP URGENT:(
how do i convert 4 g/ml to kg/m^3 ? 
Algebra 2 URGENT
Simplify: (ab)/(a^1b^1) 
maths
2x+5=x+9 urgent help needed 
urgent math
solve 4(7^(x2)) = 8 
Math please help urgent !
y= u+3/u1 u=x^1/3 find dy/dx at x=8 
Math URGENT!!!
32=8/7(3w  1) Find w. 
maths. It's urgent
solve for the value of x and y. X+y=15 x^y+y^x=30 
Urgent math help
what is the x intercept y = 5x+20 
Algebra 2 URGENT
Simplify: (1)/(t^2+t)+(1)/(t^2t) 
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... 
Chemistry! urgent
what volume of gas at 40°C and 1.50 atm is necessary to react with 300 L of hydrogen gas measured at the same conditions? 2H2 (g) + O2 (g) > 2H20 (g) 1.50 atm= 151.KPa How would I solve this? Because I can't use: PV = nRT I have pressure, temperature, r. There's no way I... 
Algebra 1Please, help me! This is urgent!
Solve each equation. 1). 4/5y + 1/3 <= y 2.) 4/5h => 2 
Math (URGENT)
Solve. 4(1^2) = ? My calculator says its 4 I got +4 Help Please. 
math URGENT thx
what is the rule? x 5 7 9 11 y 1 1.6 1.8 2.2 
Richard
Please answer "Physics  URGENT" below. 
maths
this is urgent y=1/2x  1 if x equals 4 what does why equal? please help 
MATH urgent
Hello!! 1. find the third derivative of f(t)=(t1)/(t+1) 2. y= x^(x^2) ; dy/dx please help! thank you! 
ALGEBRA 2 URGENT! PLEASE HELP!
Simplify (10x^26xx^3)+(9x+x^3+5x^2) 
URGENT MATH
Find h(t) + k(t) if h(t) = {(4,5), (2,3), (0,5), (1,3), (3,1), (5,5)} and k(t) = {(3,2), (2,6), (1,0), (1,0), (2,6), (3,5), (4,0), (6,2)}. (2 marks) 
HELP! URGENT!
What is the pH of a 0.030M solution of KF? Ka of HF is .2 x 10^4. THNX! 
maths
how do you get 45 percent of something urgent thankyou 
Quick Question (URGENT)
What does this symbol mean (#) thank you 
CALCULUS HELP URGENT!!
find y' if arctan(xy)=6+x^(4)y 
Algebra 2 URGENT
Simplify: 2x+5/4x^2 + 2x5/10x 
Algebra 2 URGENT
Simplify: 2x+5/4x^2+2x5/10x 
To Ms. Sue urgent
So do I have to write every country down?? 
calculus(urgent pls)
Integral of 1/[x^2(1+x^2)] 
Math Urgent
Evaluate 2 ∫ x+1 3 
MATH
HOW TO SOLVE THIS? ã8(ã101) PLEASE IT IS URGENT !!!! 
Precalcus Urgent HELP PLEASE
Evaluate the function at the indicated value: g(x) = 3x/3+x g(a3)= 
ALGEBRA 2 URGENT
6x/x8  7x/x1 = 5/x(2)9x+8 / is fraction (2) is squared 
Math(urgent!!)please!
3/4(2x1)5 is equal or greater than 5/4(x3) 
Math URGENT!
2. 9X2=34+3X 4.x/315=12+x 6.11+4x=7+5x 8.7+x=8x 10.0.45x+25=40+0.25x 
CHEMISTRY: URGENT DRBob222
I thought it was similar so I wrote... x + y = 30cm^3 x + 2y = 61.5cm^3 i.e 2x + 2y =60cm^3 x + 2y = 61.5cm^3 therefore x= 1.5cm^3(volume of methane) and y= {61.5(1.5)}/2= 31.5cm^3(volume of ethane) However my teacher said the volume i got for ethane is wrong, because my ... 
Chemistry DrBob222 Urgent Please help
Name these: a) CH2=CHCH=CH2 b) CH3CH=CHC(TRIPLE BOND)CH c) CH3CH2CH2CH(Cl)CH(Br)CH3 
chemistry urgent
a mixture of NO, CO2, and O2 gases has a total pressure of 2.5x10^3 torr. if the partial pressure of NO is 800 torr and CO2 is 600 torr, what is the partial pressure of O2? Dr. Bob. Please help 
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 ... 
Urgent Chemistry
The diffusion current for a standard is 1 x 10^4M solution of hydroquinone is 17.5 microamperes. An unknown solution of hydroquinone, when diluted hundred folds and polarographed under same conditions yielded a current of 30.5 microamperes. Calculate the concentration of ... 
Chemistry(Urgent, please help)
I need to find the order of a reaction with respect to the reactants. I set up my equation like this: 5.33e2 M / 2.66e2M = 1.03e2 / 1.93e3 I did the concentrations equal to the rates. I am just not sure what the units for rate should be. 2.00 = 5.33^m Did I set this up ... 
organic chemistry
urgent, please help me...this is about the separation and purification scheme... there is 4 group of mixture: a)benzoic acid, benzoin and 1,4dibromobenzene b)fluorene, otoluic acid and 1,4dibromobenzene c)phenanthrene, methyl 4aminobenzoate and 1,4dibromobenzene d)4... 
Chemistry Urgent
Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) > 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = 32.6 kJ/mol H2O(l) Ä Hof = 285.83 kJ/mol H2S(g) ÄHof = 20.6 kJ/mol 
English
Original sentence: The urgent care center offers a variety of services such as physician appointments, mental health, health education programs, and lab and Xray work. My corrections: The urgent care center offers physician appointments, mental health evaluations, health ... 
Mathurgent
What's 11/12 divided by 3/4 in repeated subtraction? 
Math urgent
Solve for x. x+4 (x+3) =17 Please show your work. 
character education
what is the difference between important and urgent? 
College Algebra URGENT
f(x)=1/(x+4) g(x)1/(6x+4) what is f(composed)g(x) if x does not equal 4/6 please help me 
Math  Urgent
32/9b=1/3b7 What does b equal? Please show all work 
math URGENT
please factor 2.75x^27x120 
Math urgent
Z/26=4 What does z equal? Please show your work. 
MathURGENT!!!!
write the parametric equations of 3x+1/2y=2/3. please help me!!! 
US HISTORY THIS IS URGENT!!
WHAT WERE THE PEOPLE OF MASSACHUSETTS LIKE IN THE 1620S? 
Chem Urgent!
I need help in balancing equation for NO2 + O2 > NO + O3 Please help... 
math very urgent
What is the area of a shape that that has 8 sides and has 1 , 1 , 8 , 1 , 1 , 3 , 3 and 10? 
math plz its urgent
what values of the function y=2x 4 for x= 0, 1, 2, and 3? A. 0,6,8,10 B.4,6,8,10 it think its this one? C 4,2,0,2 D. 0,6,8,10 
help PLEASE! URGENT!
ok, i need help w/ this problem. (4x^3 + x^2 + 3) + (x^3 + 2x^2 +1) can u please explain how to do this please? i'm very lost. Thanx! Ally 
Science! NEED HELP URGENT
What effect does amplitude have on velocity? 
adv functions urgent
any math teachers around? 
math urgent
Tan20+4sin20=√3 
English  Very urgent
How does pearls represent hope? 
Integers (urgent)
For what integer values of x is x+12 positive? 
Math urgent
How can 2.65 be written as the ratio of two integers? 
Not urgent but need answer
when you say subract x from y do you mean : y  x or x  y. Whoever answers, thank you for your time yx 
Math  Urgent
2/3x+1/2x=5/6+2x What does x equal? Please show all work. 
Math urgent
Solve for x. 8x(8+6x)=20 Please show your work. 
Math urgent
4x2+3x=4 What does x equal? Please show all work. 
Maths (URGENT!!!)
2).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) 
Science  Urgent.
What is a electrostatic lifting apparatus? Please help.. 
math too urgent
how to construct 75 degree angle 
Math Urgent
2e= 4e16 What does e equal? Please show all work. 
Urgent ~ Math
3(x – 4) = 5(x + 2) (1 point) x = 11 x = –11 x = 1 x = –1 I think this is 11 am i correct or am i wrong? 
URGENT math
(x1)(x+3)6=0 Solve by quadratic formula. 
Math urgent
3 (x8)+7x=12 What does x equal? Please show your work. 
Algebra 2 URGENT
Simplify: x+2/x^2+x2/2x Please Show All Work! 
Algebra II
What is the sum of the geometric series 12 E 2(1/2)^x x=0 4 0 2 3 PLEASE HELP Urgent 
English! URGENT PLEASE HELP!
Sentence for the word BEATIFICALLY?!? 
HELP THIS IS URGENT!
HOW MANY OZS IS IN 100 LBS? PLZ HELP ME! 
Math(urgent)
Find the domain of the function. s(y)= 3y over y+5 
Math urgent
X+4÷7=2 What does x equal? Please show your work.