April 19, 2014

Search: Chem--PLEASE HELP 911

Number of results: 93,574

solve equation in interval. sec x = -3 - x < the answer is x = -1.911 and 1.911 could someone please write the steps to solving this
Sunday, September 4, 2011 at 11:32pm by Amy

Thanks DrBob222!! the help is much appreciated!
Thursday, December 13, 2012 at 5:23pm by MSJO

Hello drwls. Please can you explain how you get 72sqrt2+c. Surely, if it is 50.911=50.911+c, if one subtracts either side c=0? Am I missing something?Thank you for your help.
Friday, May 20, 2011 at 2:00pm by paul

0.911 M x 25/500 = ??M OR another way: moles KNO3 = M x L = 0.025 x 0.911 = ??moles Then M = moles KNO3/0.500 L. You should obtain the same answer either way.
Sunday, October 10, 2010 at 6:33pm by DrBob222

1. Call 911. 2. Call at 911. 3. Dial 911. 4. Dial at 911. 5. Call me at 123-4567. 6. Dial me at 123-4567. (Which expressions are right?)
Wednesday, March 2, 2011 at 4:11am by rfvv

2.911 But I think you can't just use a calculator to solve. Let me show you how to solve without. Remember to line up the decimals! 2.750 .003 .158 Essentially for the decimal spot, you're just adding 750, plus 3, plus 158. You can easily calculate that in your head to be 911...
Monday, April 5, 2010 at 11:26am by Houdini

A compound of carbon, hydrogen, and oxygen was burned in oxygen, and 2.00 g of the compound produced 2.868 g CO2 and 1.567 g H2O. In another experiment 0.1107g of the compound was dissolved in 25.0 g of water. This solution had a freezing point of -0.0894 degrees C. What is ...
Thursday, December 13, 2012 at 5:23pm by MSJO

A- 14H + 6Fe^2+ + Cr2O7^2- --> 6Fe^3+ + 2Cr ^3+ + 7H2O B- 3N2H4 +4Cl03- --> 6NO2+ 12Cl- + 6H2O This was all I was able to come up with, am I at lease headed in the right direction?
Thursday, April 25, 2013 at 12:22pm by JO

Balance the following redox reaction and identify the oxidizing and reducing agents A- Fe2+(aq) + Cr2072-(aq) -->Fe3+(aq) + Cr3+(aq) (acidic) B- N2H4(g) + ClO3-(aq) -->NO2(g) + Cl- (basic)
Thursday, April 25, 2013 at 12:22pm by JO

Water is added to 25 ml of a .911 M KNO3 solution until the volume of solution is exactly 500ml. What is the concentration of the final solution.
Sunday, October 10, 2010 at 6:33pm by Jen

Here is a site that shows you how to balance redox equations. Repost with specific questions. I can help you through it but you must learn how to do this.
Thursday, April 25, 2013 at 12:22pm by DrBob222

please Help ME and if you do not i am going to BEAT YOU UP!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1!11111 and if you do not i am going to call 911
Monday, February 27, 2012 at 5:41pm by cool star

please Help ME and if you do not i am going to BEAT YOU UP!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1!11111 and if you do not i am going to call 911
Monday, February 27, 2012 at 5:41pm by cool star

Please try some of the following links to get started: Sra
Friday, January 28, 2011 at 2:27pm by SraJMcGin

To have the same weight and mass, the product of Radius^3 and density must be the same for the aluminum and iron spheres. Let subscript 1 be Al and subscript 2 be iron. R1^3*(density1) = R2^3*(density2) (R1/R2)^3 = 7.86/2.70 = 2.911 R1/R2 = cube root of 2.911 = 1.428 R1 = 1.40...
Friday, August 27, 2010 at 12:27am by drwls

So far so good except you didn't finish the empirical formula. There are only whole numbers in empirical formulas. Your is 1:2.6:1(actually it is 1:2.67:1. The easiest way to get whole numbers is to try multiples; i.e., 2 x each gives 2:5.34:2. That doesn't do it so try 3. ...
Thursday, December 13, 2012 at 5:23pm by DrBob222

Here's what I did so far CO2 2.868 * (12.01/44.01)=.7826 H2O 1.567 * (2*1.008/18.016)=.1753 mass O =2.00-.7826-.1753= 1.0421 C= .7826/12.01= .0651 H= .1753/1.008= .1739 O= 1.0421/16.00= .0651 then i divided each number by .0651 and got 1:2.6:1 from here on i'm stuck finding ...
Thursday, December 13, 2012 at 5:23pm by MSJO

Chemistry(Thank you for your help!)
The following info was obtained: [HI], M 0.535 0.268 0.134 6.70E-2 seconds 0 520 781 911 What is the average rate of disappearance of HI from t = 0 s to t = 520 s The answer is 5.13E-4 M s-1 but I do not understand how to get this!!!Could someone please explain!! Thank you!!
Friday, March 9, 2012 at 7:41pm by Hannah

Thursday, October 8, 2009 at 1:47pm by Rachael

Wednesday, September 15, 2010 at 4:24pm by Anonymous

Wednesday, September 15, 2010 at 4:24pm by Anonymous

not sure
call 911.
Tuesday, October 11, 2011 at 8:27am by bobpursley

Wednesday, September 19, 2012 at 10:31pm by Anonymous

2.750 +0.003 +0.158 =2.911
Wednesday, December 22, 2010 at 2:52am by mariah

Just say no. Then call 911.
Friday, January 11, 2013 at 2:25pm by Writeacher

10,911 - 8,648 = ?
Wednesday, May 22, 2013 at 7:48pm by Ms. Sue

Hi I will be traveling to Quebec and I want to know how do you call 911 there? Is it the same number?
Tuesday, June 17, 2008 at 11:38am by Coralia

Thursday, April 15, 2010 at 6:59pm by ME

282/47 = 6 C = pi*d 6 = 3.14d 6/3.14 = d 1.911 = d
Friday, December 21, 2012 at 5:50pm by Ms. Sue

Algebra 106
625(1+.0384)^10 = 911.02 if compounded annually
Saturday, November 10, 2012 at 10:41am by Steve

I think I got it. c) ω0 t + (0.5*α*t^2) d) 911.3 Can you just double check this?
Wednesday, April 2, 2014 at 11:06am by Michelle

Line up the decimal points. Then add. 2.750 0.003 0.158 ----- 2.911
Friday, December 18, 2009 at 1:40am by drwls

order the numbers form greatest to least 291;911;439;747
Monday, August 27, 2012 at 6:14pm by shion

I DONT GET WHATS DONE.. DR.Bob22 - could u please explain this again..thank u
Tuesday, February 17, 2009 at 12:10am by CHEM

Thank you...good to know, but isn't there a "Dr.Russ" that works with Organic Chem??
Wednesday, March 12, 2008 at 9:48pm by K

sociology ethnicity
What are the changes in American Policies since 911 towards Muslims and Arabs and the treatment of them?
Monday, May 9, 2011 at 12:37pm by steve

I am very sorry. Chem is just not my thing and i looked in my notes the book and everything
Thursday, April 14, 2011 at 7:40pm by Sal

Calculate the current in the 240-Ώ filament of a bulb connected to a 120-V line. Power = IV
Friday, August 16, 2013 at 7:56pm by Tracee

since 911, what are some changes the united states has made to policy concerning arabs and muslims treatment
Thursday, April 15, 2010 at 6:59pm by cam

You could use a calculator and find out or you could just add it manually as below. 2.75 0.003 + 0.158 = 2.911
Wednesday, December 22, 2010 at 2:52am by Humberg

Convert 2.868g CO2 to g C. 2.868 x (atomic mass C/molar mass CO2) Convert 1.567g H2O to g H (not H2). 1.567 x (2*atomic mass H/molar mass H2O) mass O = 2.00 - mass C - mass H. Convert g C, H, O to mols. mols C, H, O, = grams/atomic mass. Now find the ratio of the element to ...
Thursday, December 13, 2012 at 5:23pm by DrBob222

Rofl, I think you're in my calculus class. I have the same question for homework too. I'm not sure if you're solving the problem using geometric or catersian vectors. It's always best to draw out the problem. . . Assuming you meant 70kg instead of 7kg. . . I'll do this problem...
Sunday, February 17, 2008 at 9:28pm by Anonymous

lived in Missouri = 5,911,605/303,824,640 = .019 so did not live in Missouri = 1-.02 = .98
Sunday, May 1, 2011 at 5:19pm by Anonymous

I disagree with calling 911. A stranger asking to use the phone is not necessarily a threat. Of course lock the doors and windows, but I don't see this event as an occasion to call the police.
Friday, January 11, 2013 at 2:25pm by Ms. Sue

Math 156
You must have meant 1/16th of a pre-measured dose cup. If so, then the number of doses in the bottle is 9 (1/16) = 144 If it is as you typed it, better call 911.
Sunday, January 24, 2010 at 10:40am by Reiny

math help
54,700,000 - 5,000,000.089 = 49,699,999.911 What do you think this is in words?
Monday, January 28, 2013 at 11:02am by Ms. Sue

Im just not sure of this I keep getting confused? (1) Round the following number to the indicated place. 5,911 the nearest thousand. (A)6,000 (B) 5,910 (C) 6,010 (D) 5,900 (2) How do I find the perimeter of a figure
Wednesday, September 24, 2008 at 9:27pm by PJ

13. Healthy Foods, Inc. sells 50-pound bags of grapes to the military for $10 a bag. The fixed costs of this operation are $80,000, while the variable costs of the Grapes are $.10 per pound. a. What is the break-even point in bags? $80,000 = $80,000 = 80,808 units $10.00 - $0....
Saturday, August 1, 2009 at 12:41am by scooby9132002

fin. am I correct?
13. Healthy Foods, Inc. sells 50-pound bags of grapes to the military for $10 a bag. The fixed costs of this operation are $80,000, while the variable costs of the Grapes are $.10 per pound. a. What is the break-even point in bags? $80,000 = $80,000 = 80,808 units $10.00 - $0....
Friday, July 31, 2009 at 10:29pm by scooby9132002

sin^2(20) = 0.116,997,778. sin^2(40) = 0.413,175,911. sin^2(80) = 0.969,846,310. Sum = 1.500 = 1 1/2 = 3/2.
Tuesday, March 22, 2011 at 3:18pm by Henry

We have been told in our precinct to 1) not open the door and to 2) call 911 with a description. A deputy constable can then check the situation out and determine if there's a threat or not. They don't want us determining who's a threat and who isn't!
Friday, January 11, 2013 at 2:25pm by Writeacher

Chemistry/hydrolysis of ATP
Thank you very much:-) Like this? G=6(-394)+6(-237)-(-911)= -2875/30,5 Answer. 94,3 mol ATP/mol glucose
Thursday, August 28, 2008 at 11:06am by Mary

what is 93,042-54,878: what is 153,911-68,099; what is 49,499*5; what is 61,711-30,490; what is 29,038*72; what is 22,675*30
Thursday, December 9, 2010 at 10:48pm by sarah smith

complete and balance the following decompition equations CaCO (heated) --> 3 please tell me how to do this and what exactly is suppose to be going through my head while doing this. I can balance these equations with no problem I just have no idea what to do...
Wednesday, December 17, 2008 at 7:09pm by Chem

chem- drbob222 please help
my original question was: how do i figure this out?? How much heat does your body lose when 2.46 g of sweat evaporates from your skin at 25C? chem - DrBob222, Tuesday, February 22, 2011 at 10:52pm q = mass water x delta Hvaporization. chem - Rebekah, Wednesday, February 23, ...
Wednesday, February 23, 2011 at 5:49pm by Rebekah

COuld u please answer this Ineed the formula for bis(bipyridyl)cadmium(II) chloride
Wednesday, March 7, 2012 at 2:27pm by HELP PLEASE

Our regular chemist expertm DrBob222, is taking a vacation for a week, so it is quite likely that no one will be available to help you with your organic chem questions. Thank you for using the service, and I hope that you will continue to do so. Perhaps another person using ...
Wednesday, March 12, 2008 at 9:48pm by drwls

Thank you for using the Jiskha Homework Help Forum. The arguments seem to be the irrational reaction to 911 and the unwarranted and expensive security at airports. The premises seem to be to implement practices directly related to results and the greater danger from car ...
Tuesday, July 15, 2008 at 9:21am by SraJMcGin

human biology
A 56 year old obese male is rushed to the ER via ambulance. The EMS team reports he was found non- responsive and in shock. Additionally, they note he has a stiff rigid abdomen and can feel a large lump near the midline. Upon questioning, his wife explained that her husband ...
Monday, July 16, 2012 at 11:00pm by Michelle

V = ( d ^ 2 * pi / 4 ) * h V = ( 17.03 ^ 2 * 3.14159 / 4 ) * 5615 V = ( 290.0209 * 3.14159 / 4 ) * 5615 V = ( 911.126759231/4 ) * 5615 V = 227.78168980775 * 5615 V = 1278994.18827 mm ^ 3
Monday, July 9, 2012 at 10:03pm by Anonymous

math help!
54,000,700 -5,089,000 ______________ 48,911,700 forty-eight million, nine hundred 11 thousand, seven hundred
Friday, January 25, 2013 at 1:31pm by Ms. Sue

Please predict what will happen. Im not very good in chem. Iron metal and pb(NO3) Lead metal and Mg(9NO3)2 Copper metal and AL(NO3)3 Lead metal and AgNO3
Thursday, April 18, 2013 at 8:44pm by jim

What is another name for cardamist? Please write the formula and a link to its structure. See
Sunday, September 4, 2005 at 5:04pm by Nisar

AP Chem
I looked at the first four, they are right. Dont you work with someone on chem homework? Like a study group? That is a very effective way to work chem and physics problems.
Wednesday, November 19, 2008 at 11:22am by bobpursley

A is ok. Good work. B is not right. For example, N and H are OK but I see 4 Cl on the left and 12 on the right. I see 12 O on the left and 18 on the right. ClO3^- ==> Cl^- Cl is +5 on the left and -1 on the right, so ClO3^- + 6e ==> Cl^- I see -7 charge on the left; -1 ...
Thursday, April 25, 2013 at 12:22pm by DrBob222

An object of mass M = 911 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal as shown in the figure below. What is the magnitude of the force that is exerted by the inclined surface on the object?
Thursday, October 14, 2010 at 9:30pm by sara

chem -repost for bobpursley
i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g...
Sunday, April 17, 2011 at 8:53pm by please, help me

Please help!
Thank you for using the Jiskha Homework Help Forum. but instead of just labeling this HELP, please label it math, chem, or whatever the subject matter is. Most of us are looking for certain areas to read.
Saturday, September 29, 2007 at 12:37am by SraJMcGin

Dr BOB, Can you show me how to do the balanced equation please I am shocking at them Thanks AndyWhats the simple way to explain balancing equations so i get it please....because i am horrible at them... Thanks andy
Wednesday, May 12, 2010 at 9:22pm by Andy

Chem Please Help
Saturday, November 24, 2007 at 5:21pm by Sami

CHEM please HELP
Friday, February 13, 2009 at 8:14pm by jerry

Chem Help please!!!!!
thank you
Wednesday, December 19, 2012 at 6:31pm by Taylor

chem please help !!!!
Thursday, October 13, 2011 at 9:29pm by Anonymous

Chem Please Help
Tuesday, April 1, 2014 at 12:43am by Anonymous

Please Help
Sunday, April 6, 2014 at 10:38am by Charlie

A sense of urgency is a human feeling, often shared by many people. For instance, most of us feel a sense of urgency about our collapsed economy and hope that it is turned around soon. Urgency is more factual. The urgency of his need caused him to call 911.
Saturday, January 31, 2009 at 1:35pm by Ms. Sue

Chem Check Please!!!
Using standard thermodynamic data from Appendix L of your text, calculate the equilibrium constant at 298 K for the following chemical reaction: CO(g) + H2O(l) CO2(g) + H2(g). Show work please! Thank you!!!
Sunday, March 16, 2014 at 11:20pm by Layla

The valve between a 5 liter tank in which the gas pressure is 911.925 kPa and a 10 liter tank containing gas at 4560 torr is turned open and equilibrium is established at constant temperature. What is the final pressure in the two tanks in atmospheres?
Monday, December 5, 2011 at 6:46pm by laura

thank you
Wednesday, March 12, 2008 at 9:48pm by K

Can you repost #1 please. Thanks.
Monday, August 10, 2009 at 8:08pm by Chem

Chemistry Help Please!!
Thank you! :D
Monday, March 5, 2012 at 8:04pm by Chem Student

Chem- Please check :)
I don't get it :S
Wednesday, April 18, 2012 at 10:21pm by Anonymous

please do not spam!
Tuesday, November 13, 2012 at 6:21pm by Samantha

how do u convert for y?
Tuesday, April 23, 2013 at 11:23pm by scilover

**Chem | PLEASE HELP!!!!!!!!
Thanks a million!!!!
Friday, July 26, 2013 at 10:54pm by LILYYYYY

Please help Chem
Thanks so much!
Thursday, September 19, 2013 at 8:50pm by anony5

The experiment is about titration of vinegar with NaOH. Before I start titration, I need to calculate how much of vinegar I will want to be using. I think I might use 50ml of distilled water to mix vinegar and I am gonna drop 3drops of phenolphthalein as indicator. Please help...
Sunday, October 10, 2010 at 1:54am by Kim

i don't get this at all can you please show me how to do this problem: a sample of oxygen occupies 10.0 L under a pressure of 105 kPa. at what pressure will it occupy 13.4 L if the temperature does not change. please help me set it up
Thursday, May 14, 2009 at 6:33pm by melissa

answer for the first was "3"
Sunday, February 24, 2008 at 8:11pm by K

Can you please post this answer again?
Tuesday, November 11, 2008 at 6:43pm by hi PLEASE!!!
can you explain that better? i'm confused.
Monday, March 9, 2009 at 3:19pm by -

why is the answer 9 can you please explain
Thursday, April 9, 2009 at 8:42pm by Sandra

College Chem
Please do tell...
Wednesday, March 17, 2010 at 5:30pm by London

please answer this>??
Tuesday, January 25, 2011 at 2:20pm by maretcheal

Can u do the steps please with the numbers
Saturday, April 18, 2009 at 6:19pm by Pookali

Chem please help
Doesn't the name tell you?
Thursday, February 23, 2012 at 9:54pm by DrBob222

formula for bipyridyl
Wednesday, March 7, 2012 at 2:27pm by HELP PLEASE

Chem Help PLEASE!
nvm got it.
Wednesday, March 14, 2012 at 8:57pm by Taylor

please post the formula!
Saturday, December 15, 2012 at 10:01am by anonymous

chem please help!
I answered this for you earlier.
Tuesday, January 8, 2013 at 8:39pm by DrBob222

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>