Questions Asked on April 22, 2007

Hi, I posted yesterday with this lab question."Calculate the molar amounts of NaOH used in the reaction with the HCl solution
1. 1 answer
2. asked by Rachel
3. 3,265 views
Let x represent the number which shows up when a balanced die is rolled. Then x is a random variable with a uniform
1. 1 answer
2. asked by J
3. 3,090 views
The amount of money in an account with continuously compounded interest is given by the formula A = Pert, where P is the
1. 1 answer
2. asked by Greg
3. 2,166 views
The water in a beaker has a mass of 18g. Electricity is passed through the water for two hours. Afterward the water has a mass
1. 1 answer
2. asked by AJ
3. 1,937 views
A sample of water decomposes to make 4g of hydrogen gas and 32g of oxygen gas. What mass of water decomposed? How do you know?Hi
1. 1 answer
2. asked by AJ
3. 1,892 views
A student of mas 70kg wants to walk beyond the edge of a cliff on a heavy beam of mass 300kg and length 10m. The beam is not
1. 2 answers
2. asked by Belle
3. 1,850 views
How many grams of KCl are produced by the thermal decomposition of KClO3 that produces 25mL of O2 at 25 degrees and at 1 atm?A)0
1. 1 answer
2. asked by smartypants
3. 1,781 views
What is the Lewis dot structure for the HYDRIDE ion?A)H:- B)H+ C)H' D)H3O+ E)none It's hard for me to read the dots but I THINK
1. 1 answer
2. asked by CHEMgurl
3. 1,738 views
Which if the following statements concerning complex ion Co(en)2Cl2+ is true? en=NH2CH2CHNH2A)the geometric isomers of the
1. 0 answers
2. asked by gina
3. 1,593 views
the Ka for acetic acid, HC2H3O2, is 1.8x10-5 at 25 deg. Celsius. In a .10 M solution of potassium acetate, which of the
1. 2 answers
2. asked by Anonymous
3. 1,530 views
Please someone tell me a good way to understand Japanese sentence structure and how to know what particles to say after each
1. 0 answers
2. asked by Andew
3. 1,358 views
im not sure how u solve these types of problems...How many moles of NaOH are contained in 200ml of a 0.1M of NaOH? How many
1. 0 answers
2. asked by Phil
3. 1,291 views
I need help rounding 423,607,492 to the following place values.ten thousands million Please tell us what you think, and we'll be
1. 1 answer
2. asked by kim
3. 1,259 views
why does the dry ice form clouds of white vapor, especially when you blow on it? what is the vapor composed of?The vapor is
1. 0 answers
2. asked by janis
3. 1,244 views
which of the following coordination compounds will most likely form a precipitate when treated with an aquesous solution of
1. 0 answers
2. asked by gina
3. 1,231 views
The base of a solid is a circle ofradius = 4 Find the exact volume of this solid if the cross sections perpendicular to a given
1. 1 answer
2. asked by mark
3. 1,231 views
frozen carbon dioxide, CO2.what is dry ice
1. 0 answers
2. asked by DrBob222
3. 1,204 views
Two identical tuning forks can oscillate at 329.6 Hz. A person is located somewhere on the line between them. The speed of sound
1. 0 answers
2. asked by COFFEE
3. 1,198 views
what is the concentration of ions in 1.2 M aluminum nitrate solutionAl(NO3)3 I count four ions )(one Al,
1. 0 answers
2. asked by Anonymous
3. 1,189 views
Consider a rectangular block of mass 30kg, height= 3m, length = 2m. A force F is applied horizontally at the upper edge. The
1. 0 answers
2. asked by Belle
3. 1,183 views
how many ions do each produce when in a 1.0M solutionCH3COOH Ca(NO3)2 NaNO3 NaCl H2SO4 To figure out this you have to be able to
1. 0 answers
2. asked by kim
3. 1,178 views
7(u-3)+2u=-30expand the parenthesis to 7u-21 + 2u=-30 combine the u's, add 21 to each side.
1. 0 answers
2. asked by ann
3. 1,090 views
The specific heat capacity of the lava is 1600 J kg^-1 degres celsuis ^-1. when all the erupted lava cools from the eruption
1. 0 answers
2. asked by missy
3. 1,069 views
which would be the best anwser here?my guess was D but i wanna be sure Ammonium nitrate is sometimes used as a high explosive
1. 0 answers
2. asked by smartypants
3. 948 views
consider the curve in xy-plane by x=e^t and y=te^(-t) for t is greater or equal to o. the slope of the line tangent to the curve
1. 0 answers
2. asked by Anonymous
3. 904 views
what would the dimensions of a retangle be whose perimeter is 50(P=50)inches when the length is 2x-5 ane the width is unknownThe
1. 0 answers
2. asked by Sissy
3. 842 views
Can someone please check my answers.1. Solve. –7x + 1 + 8x = x + 1 A) Identity B) No solution C) 1 D) 0 My answer: A) Identity
1. 3 answers
2. asked by Noah
3. 828 views
what is the molecular geometry for the following elementsA) SeB4 B) carbonate ion C) XeF5+ D) ammonium ion E) phosphorus
1. 1 answer
2. asked by gina
3. 813 views
A square has sides of length 3x - 2 cm. Express the area of the square as a polynomial.would i write this as 3x-2cm^4 because
1. 1 answer
2. asked by TOMMY
3. 803 views
waht is the impact of a stock repurchase on a companys debt ratio? Does this suggest another use for excess cash?The correct
1. 1 answer
2. asked by Erica
3. 796 views
a driver passes 4 sets of traffic lights. the random varaible X is the number of traffic lights he has to stop at. the
1. 0 answers
2. asked by mick
3. 787 views
What did Jorge Luis Borges fight for and what did he fight against? What were the measures he used to bring about change and was
1. 0 answers
2. asked by Jacke
3. 777 views
I have a Romeo & Juliet essay to be handed in 5 days from now. I mainly have to write about 'Act 3 Scene 1'.The structure paper
1. 0 answers
2. asked by Leanne
3. 763 views
The multiple Choice Question:Determine delta G (free energy at standard condition s) for the reaction below, considering Kp = 8
1. 0 answers
2. asked by Tommy
3. 762 views
I have two questions about this problem, I understand how it's supposed to be done but I don't understand how my teacher came to
1. 0 answers
2. asked by Vesone
3. 722 views
Which one of the major concepts is Notincluded in the conceptual framework on which nutrition education is based? 1. Nutrition
1. 0 answers
2. asked by Jenna
3. 718 views
A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 85 kg. A person
1. 1 answer
2. asked by Papito
3. 710 views
Is this correct now.Problem #1 solve by completing the square. 2x^2+8x+3=0 My answer: x=-2 +/- sqrt (5)/(2) Problem #2 solve by
1. 0 answers
2. asked by jasmine20
3. 705 views
I have to give an ex of a solid, liquid and gas and write a sentence telling what I know about the shape and volume of each. My
1. 0 answers
2. asked by Jackie
3. 696 views
I have been working this one for awhile and have become more confused. Please assist.Problem: Find two consecutive odd integers
1. 0 answers
2. asked by ken
3. 693 views
I need to determine the value of eah underlined digit and its place value.42,107,000 472,336 It should be the 2 in 42,107,000 4
1. 0 answers
2. asked by leslie
3. 686 views
when the dry ice is in the water it occasionally makes a popping sound. how can you explain that?I expect you are hearing the
1. 0 answers
2. asked by janis
3. 675 views
Choose the two options which are true for all values of x1) cos (x) = cos ( x – pie/2) 2) sin (x + pie/2) = cos (x – pie/2)
1. 0 answers
2. asked by katie
3. 670 views
Which is the percent of immigrants going to U.S.A. and New York?I went to www.google.com and searched for immigration u.s.
1. 0 answers
2. asked by gringrin
3. 669 views
is problem number 1 correctProblem #1 factor completely. x^4 + x^3 -12 MY answer: (x^2-3)(x^2+4) or is this still factorable.
1. 0 answers
2. asked by jasmine20
3. 658 views
Match the following properties to the appropriate element listedElements a) fluorine b) chlorine c) Bromine d) iodine Properties
1. 0 answers
2. asked by Anonymous
3. 657 views
what is a whole note calledThank you for using the Jiskha Homework Help Forum. Perhaps you mean the "semibreve."
1. 0 answers
2. asked by fgsdfgdg
3. 654 views
How do you integrate using substitution: the integral from 1 to 3 of: ((3x^2)+(2))/((x^3)+(2x))There is a trick to this one that
1. 0 answers
2. asked by Me
3. 645 views
No idea how to do this. I looked in my book and there usually is a data set present to get the first, second and third quartile.
1. 0 answers
2. asked by J
3. 644 views
donna took 3hours to row 18 km upstream. her return trip took 1 hour less. find the rate of rowing in still water and the rate
1. 0 answers
2. asked by ineedhelp
3. 641 views
What ions are very important for the proper fuctioning of biological systems such as nerves and cells?A)alkali earth metals
1. 4 answers
2. asked by ninjaturtle
3. 631 views
What ions are very important for the proper fuctioning of biological systems such as nerves and cells?A)alkali earth metals
1. 0 answers
2. asked by optifree
3. 629 views
Solve 2x-y+3z=8x-6y-z=0 -6x+3y-9z=24 Did you notice that your third equation has the same normal as the third one? So visually I
1. 0 answers
2. asked by Lily
3. 628 views
If you have ever read The Five People You Meet in Heaven, do you know what the theme would be? I think it could be something
1. 0 answers
2. asked by Anonymous
3. 627 views
Immigrants U.S.AWhat do you want to know about immigrants to the U.S.A.? Since most of us are descended from immigrants -- who
1. 0 answers
2. asked by Piggy
3. 626 views
rearrange this equation 2 make x the subect.6y = 9 - 3x so first i add 3x to both sides which makes it 3x - 6y = 9 then do i
1. 0 answers
2. asked by missy
3. 624 views
I would like to learn more about Blobs.Thank you for using the Jiskha Homework Help Forum. Are you referring to the Minichip
1. 0 answers
2. asked by Tyler
3. 618 views
If you have ever read To Kill a Mockingbird, Of Mice and Men, or The Five People you meet in Heaven, please leave a post b cuz I
1. 0 answers
2. asked by Brie
3. 615 views
What kinds of unwanted reactions might you get from readers of your messages? What steps would you take to ensure that the
1. 0 answers
2. asked by Frankie
3. 614 views
you have to solve the following by finding the value of x and y. can u help please?x+3(x+1)=2x 1+3(x-1)=4 2x-2(x+1)=5x
1. 0 answers
2. asked by number 420
3. 612 views
which would be the best anwser here?my guess was D but i wanna be sure Ammonium nitrate is sometimes used as a high explosive
1. 0 answers
2. asked by chem gurl
3. 606 views
I posted this yesterday but no one told me if my answers were correct.Can someone please check my answers. 1. Solve. –7x + 1 +
1. 1 answer
2. asked by Noah
3. 602 views
Estimate each Quotient!717/9 463/90 12.398/4.1 56.784/7.9 57.36/9.32 363.68/3.6 349/7.4 249/81 162.58/4.4 481.4/64 468.65/8.43
1. 0 answers
2. asked by Amiya
3. 602 views
Nitrogen gas, N2, is usually a very inert gas and thus, is often employed in dry boxes. However, it would be a poor choice for
1. 0 answers
2. asked by blobface
3. 597 views
are these correct now i hope?Problem #1 simplify (m^2)/(8) divided by (m^5)/(16) My answer: (2)/(m^4) Problem #2 multiply
1. 0 answers
2. asked by jasmine20
3. 595 views
Ok i have a project Im doing on the red blood cells and I need to know how the blood cools down the body....It depends. If it's
1. 0 answers
2. asked by notsure
3. 594 views
Ive been looking all over and i cant find out if there is such thing as a carbon dioxide deficiency in hemoglobin (red blood
1. 0 answers
2. asked by said so
3. 590 views
If a piece of metal at -20 degrees Celsius is added to an ice and water mixutre in equilibrium at 0 degrees Celsius, which of
1. 0 answers
2. asked by John
3. 581 views
I have a few questions that i have no idea...What were some of the factors that helped John ennedy win the presidency? What were
1. 0 answers
2. asked by Fred
3. 578 views
Okay, how would you go about finding the area of a curve from 1 to 4, when y=2x+(2/(x^2))?? It's not like the problem I asked
1. 0 answers
2. asked by Me
3. 577 views
The license fee for a car varies directly with the value of the car. The fee for a car that is valued at $19,500 is $292.50. a)
1. 0 answers
2. asked by Merl
3. 575 views
Can someone help me with this homework problem?Which of the following is the best explanation as to why lithium is the strongest
1. 0 answers
2. asked by ninjaturtle
3. 575 views
1.Which of the following elements is likely to have the highest concentration inside a human cell?K Cs Na Rb Li 2.Which of the
1. 0 answers
2. asked by Ryan
3. 574 views
Can you please let me know if it is true or false that Gantt Chart is good for planning but not an effective tool for control.
1. 1 answer
2. asked by Bob
3. 572 views
when you add dry ice to water, it seems to boil. why is that?You are then transfering heat from the liquid water to the solid
1. 0 answers
2. asked by janis
3. 572 views
also is it true that the nervous system needs the blood to circulate better so it could get to the skin and help the nerves work
1. 0 answers
2. asked by notsure
3. 571 views
If a piece of metal at -20 degrees Celsius is added to an ice and water mixutre in equilibrium at 0 degrees Celsius, which of
1. 0 answers
2. asked by John
3. 566 views
What happens to the circulatory system when the red blood cells malfunction?http://www.google.com/search?as_q=&hl=en&num=10&btnG
1. 0 answers
2. asked by notsure
3. 564 views
What happens to the circulatory system when the red blood cells malfunction?and is there a disease with hemoglobin not taking
1. 0 answers
2. asked by g
3. 560 views
Sam took traveled 8 hrs to his sisters house. The return trip took 7 hrs because the speed was 3 mi/hr faster. What was the
1. 0 answers
2. asked by Amanda
3. 554 views
How is the eartworm's digestive system adapted for extracting relatively smal amounts of food from large amounts of ingested
1. 0 answers
2. asked by Emma
3. 550 views
Hi. I know this might be kind of a stupid question, but I was wondering if a predecessor follows something or is before it? I
1. 0 answers
2. asked by Melvin
3. 545 views
In Japan what is the country doing to prepare for the types of disaster they may face? What agencies are in charge in this
1. 0 answers
2. asked by Amanda
3. 544 views
i need 3 more sentences using nimble! plz help!Go to http://www.answers.com/nimble and read some of the sample uses (usually
1. 0 answers
2. asked by anonymous
3. 543 views
If a student needs an average of 70 or more to pass a course. She has scored 90, 76, and 66 on the first three exams. writing an
1. 0 answers
2. asked by Amanda
3. 540 views
how do you think an average american's perceptions of each group are created?Thank you for using the Jiskha Homework Help Forum.
1. 0 answers
2. asked by jj
3. 526 views
What is NOT is good laboratory method for preparation of oxygen gas?is the anwser here C or am i wrong A)photosynthesis
1. 0 answers
2. asked by CHEMgurl
3. 524 views
Hi, I would like to ask if there is someon who can recomend me a good university, for a person that wants to be a surgeon and
1. 0 answers
2. asked by claudia
3. 520 views
estimate each qoutientI suppose you are referring to your next posted question. Refer to my answer there.
1. 0 answers
2. asked by Amiya
3. 512 views
How can a prototype be used?Prototype are used for test and evaluation: Prototypes are useful in testing form, fit, and
1. 0 answers
2. asked by Ms Brown
3. 511 views
Written Communication - Lilly, Saturday, April 21, 2007 at 8:48pmWhat one thing is required for a rock to be called a
1. 0 answers
2. asked by Writeacher
3. 506 views
Okay, how would you go about finding the area of a curve from 1 to 4, when y=2x+(2/(x^2))?? It's not like the problem I asked
1. 0 answers
2. asked by Me
3. 500 views
Could someone please answer these questions for me. It is for a grade and due on Tuesday, 4/24/07. The license fee for a car
1. 0 answers
2. asked by Merl
3. 497 views
How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion inacidic solution to form iron (III)
1. 1 answer
2. asked by Christine
3. 492 views
Find two consecutive odd integers such that 5 times the first integer is 12 more than 3 times the second. I've gotten this far
1. 0 answers
2. asked by Amanda
3. 491 views
How do you solve 1/125=25^6x-5please and thank you I read this as 1/125 = 256x-5 or 5-3=256x-5
1. 0 answers
2. asked by Melvin
3. 487 views
Water is often instrumental in promoting disproportionation reactions however, it cannot itself disproportionate?IS THIS TRUE OR
1. 0 answers
2. asked by chem gurl
3. 486 views
input the following data into your calculator and obtain the best fit power regression function for y in terms of x, for the
1. 0 answers
2. asked by katie
3. 485 views
A Gantt Chart is good for planning but not an effective tool for control. Can you please let me know if it is true or false and
1. 0 answers
2. asked by BobM
3. 484 views
A variable is normally distributed. 42% of the possible observations of the variable lie between 20 and 28. What information
1. 0 answers
2. asked by J
3. 480 views

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