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Questions Asked on April 21, 2007

a particle moves along the curve xy=10. if x=2 and dy/dt=3, what is the value of dx/dt.i'm guessing this is something to do with
1. 1 answer
2. asked by Anonymous
3. 11,987 views
Which coordination compound will most likely form a precipitate when treated with silver(II) nitrate (aqueous)?[Cr(NH3)3Cl3]
1. 3 answers
2. asked by Londy
3. 3,458 views
For the isoelectronic series S2-, Cl-, Ar, K+, and Sc3+, which species requires the least energy to remove an outer electron?tha
1. 1 answer
2. asked by alexa
3. 2,598 views
the solubility of AgCl in HCl isa. low, as Cl- ions cause an equilibrium shift towards the solid form b. low, as Ag+ has already
1. 0 answers
2. asked by Mary
3. 1,580 views
I have two questions:1. Which group in the periodic table reacts with H2 to form compounds with the general formula MH2? A.
1. 1 answer
2. asked by Londy
3. 1,566 views
A buffer is formed by adding 500mL of .20 M HC2H3O2 to 500 mL of .10 M NaC2H3O2. What would be the maximum amount of HCl that
1. 1 answer
2. asked by alexa
3. 1,481 views
calculate the number of grams of glycerol, C3H5(OH)3 (MW=92.1 g/mol), that must be dissolved in 520 grams of water to raise the
1. 1 answer
2. asked by chris
3. 1,366 views
a 10.0% sucrose solution has a density of 2.00 g/mL. what is the mass of sucrose dissolved in 1.00 liter of this solution?thanks
1. 1 answer
2. asked by mary
3. 1,331 views
Could you please explain the distinction between eutrophication and artifical eutrophication sense eutrophication is the natural
1. 0 answers
2. asked by Mack
3. 1,296 views
180 ml of a mixture of water and alcohol with 90% alcohol concentration is mixed with 70 ml of pure water. what is the alcohol
1. 0 answers
2. asked by julia
3. 1,277 views
an energy value of 3.313x10^-19 joules is needed to break a chemical bond. what is the wavelength of energy needed to break the
1. 0 answers
2. asked by ashley
3. 1,177 views
O is the centre of the circle and A and B are points on the circumference of the circle. The radians of the circle is 12 cm and
1. 2 answers
2. asked by katie
3. 1,164 views
Choose the group from the given list: a) 1A b) 2A c) 3A d) 4A e) 5A The elements in this group are termed alkali metals.a b c d
1. 0 answers
2. asked by Ray
3. 1,081 views
Hydrogen Cyanide (boiling temperature 26 degrees Celsius) is an important chemical for the production of nylon and various
1. 0 answers
2. asked by katie
3. 1,018 views
The source of a sound wave has a power of 2.50 µW. Assume it is a point source.(a) What is the intensity 6.70 m away? I used I
1. 0 answers
2. asked by COFFEE
3. 1,017 views
I'm stuck with this equation:y = (4x-1)/(2x+3) We're working on inverses, which I understand, but my mind is blanking on how to
1. 0 answers
2. asked by Amy
3. 997 views
1. Cl2(g) -> 2Cl(g)2. H2(g) at 5.0 atm -> H2(g) at 1.0 atm 3. sublimation of solid CO2 4. 2H2(g) + O2(g) -> 2H20(g) 5. PCl5(g)
1. 1 answer
2. asked by alexa
3. 954 views
Suppose you are studying coordination compounds of Co(II) with the ligand pyridine (py, C5H5N, MW = 79.10). You isolate a
1. 0 answers
2. asked by Ray
3. 889 views
Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted with a movable piston. The piston is
1. 1 answer
2. asked by Mary
3. 869 views
which of the following choices correctly describes the decreasing ability of the radiation to penetrate a sheet of lead that is
1. 0 answers
2. asked by james
3. 842 views
Find the exact total of the areas bounded by the following functions:f(x) = sinx g(x) = cosx x = 0 x = 2pi I set my calculator
1. 0 answers
2. asked by Sarah
3. 831 views
I have to write a poetry analysis paper. I do not know how to start the first paragraph. Do I startwith telling the teacher what
1. 0 answers
2. asked by ABC
3. 812 views
Carl's hands trembled as he stood in front of the safe and unfolded the crumpled piece of paper holding the combination that
1. 1 answer
2. asked by Sam
3. 796 views
which of the following would be expected to have the lowest freezing temperature?a. .1 M Ca(NO3)2 b. .1 M NaC2H3O2 c. .1 M CuSO4
1. 0 answers
2. asked by mary
3. 782 views
what is the meaning of the " as if they already stood aghast at the bloody work they would look upon form the poem Paul RevereWh
1. 0 answers
2. asked by Ashley
3. 774 views
Name another cause of artificial eutrophication.(Is it bar b queing?)
1. 0 answers
2. asked by Mack
3. 770 views
Which of the following is a example of a irriversible change.a)Disssolve salt in water b)Freezing water C)Mixing water-colour
1. 0 answers
2. asked by Rohit
3. 755 views
I need help trying to figure out what the main idea of the passage is because I don't really understand it.The natural process
1. 0 answers
2. asked by Mack
3. 752 views
Can you help with this question?Infants should not be given semi-solid food supplements of meat or meat alternatives before the
1. 1 answer
2. asked by Haley
3. 741 views
The U.S. population in 1990 was approximately 250 million, and the average growth rate for the past 30 years gives a doubling
1. 0 answers
2. asked by carry
3. 717 views
Do you know the difference between a sequence and a series?Graph the terms of an arithmetic series. Remember the domain is the
1. 0 answers
2. asked by Tony
3. 717 views
which of the following would be expected to have the lowest freezing temperature?a. Ca(NO3)2 b. NaC2H3O2 c. CuSO4 d. HC2H3O2 e.
1. 0 answers
2. asked by mary
3. 691 views
Can you help with this question?Please give your opinion. Appropriate cooking methods are cost-efficient because: 1.food
1. 1 answer
2. asked by Paula
3. 686 views
Thank you so much!!!!I'm really sorry that I could not post back a.s.a.p to all your posts.Thoses posts were SO Helpful! Don't
1. 0 answers
2. asked by Pauline
3. 681 views
For two sounds whose sound levels differ by 69 dB, find the ratios (greater value / smaller value) of the following values.(a)
1. 0 answers
2. asked by COFFEE
3. 675 views
a person who owned and contolled all the land in a colonyCalab, that depends on what colony it was. Some were the property of
1. 0 answers
2. asked by calab
3. 658 views
Ionic hydrides of the type MH2 are most likely to form between hydride and elements of groupA. Group 1A B. Group 2A C.
1. 0 answers
2. asked by Lisa
3. 646 views
Sorry for posting this again, I don't know if the question was skipped or not, but I was just wondering if I could get some help
1. 0 answers
2. asked by Jessica
3. 639 views
The perimeter of a semicircle is 72 cm. Find the raduis of the semicircle and then find its areaConsider the full circle:
1. 0 answers
2. asked by Anonymous
3. 633 views
I have no idea how to do this problems can somebody help me:1.How many mL of and oxygen gas can be produced form the termal
1. 0 answers
2. asked by Ryan
3. 631 views
We did a lab for acid-base titrations, and I'm having trouble with my post lab questions because I had trouble with acid-base
1. 0 answers
2. asked by Rachel
3. 630 views
A triangle has sides 3x +7, 4x - 9, and 5x + 6. Find the polynomial that represents its perimeter.Am I suppose to just add these
1. 1 answer
2. asked by TOMMY
3. 623 views
Graph each question by plotting ordered pairsx=2 it's hard to describe this one.. but it would be a vertical line where 2 is
1. 0 answers
2. asked by Megna
3. 618 views
What are some Metrics that can be used during the SDLC? List various steps and applicable metrics?http://www.computerworld.com/d
1. 0 answers
2. asked by Ms Brown
3. 617 views
Which element is most important for helping eyesight?Se S As Pu Po I found this on the web. I don't now how reliable it is so
1. 0 answers
2. asked by Lisa
3. 611 views
I have a question but think I know the right answer. Just need someone to verify.Which is not an example of the typical toddler
1. 0 answers
2. asked by Elaine
3. 607 views
What is another cause of artificial eutrophication?Since you haven't told us what other causes are, it's impossible for us to
1. 0 answers
2. asked by Mack
3. 602 views
Match each of the questions below with either "True" or "False" as appropriate.-The metals with the highest ionization energies
1. 0 answers
2. asked by Lisa
3. 601 views
Our teacher gave us this quote "the one who got away" and we are supposed to figure out what it means. If anyone in the class
1. 0 answers
2. asked by Andrew
3. 596 views
Here is a sentence that says: In bodies of water polluted by phosphorus, algae can form large floating mats, called algal
1. 0 answers
2. asked by Mack
3. 585 views
Here is another part of my test that my teacher told me to check. Could you please help me check them?Write the letter of the
1. 0 answers
2. asked by Mack
3. 583 views
There are 3 known isotopes of Hydrogen and 3 stable isotopes of oxygen. How many types of water molecules would these produce?Is
1. 0 answers
2. asked by Jessica
3. 576 views
Can someone please like help me? :')Mack, what is your question? We will not give you the answer but I will try to find you
1. 0 answers
2. asked by Mack
3. 574 views
I need help figuring out these two questions on euations with integers.-5x+20=-60 2x-3=-2 thank you so much for first: subtract
1. 0 answers
2. asked by Amy L.
3. 571 views
from m previous post. I don't know if I can put the information from my text into my own words because it says the facts and
1. 0 answers
2. asked by Jon
3. 571 views
what are the pros and cons of joining "netville 2" a computer company that came to your neighbourhood.We will be happy to
1. 1 answer
2. asked by barry
3. 565 views
2 divided by 5w+ 10, minus 3 divided by2w-42/(5w +10) - 3/(2w-4) ? That can be rewritten with a common denominator. (2/5)/(w+2)
1. 0 answers
2. asked by Tony
3. 561 views
I was wondering if any one could find a picture of a Nazi woman called-Gertrude Schlottz-Klink.thanks Thank you for using the
1. 0 answers
2. asked by Jessica10
3. 558 views
Alfred suffered a mild stroke, leaving him partially paralized on his left side. Physical therapy was ordered to prevent left
1. 0 answers
2. asked by Nancy
3. 541 views
can someone please help me solve this?the u.s weather bureau has provided the following information about the total annual
1. 0 answers
2. asked by dee-dee
3. 537 views
Can someone please tell me how to solve this problem?A buyer for a lumber company must determine wheter to buy a piece of land
1. 1 answer
2. asked by DEE-DEE
3. 535 views
What could be the theme of this poem? What I would like to know is the subject matter and also what could be the author's
1. 0 answers
2. asked by James
3. 524 views
Frank and fanny farmer have been married to 10 years. On march 1, 2002 fanny farmer decides to go on “strike” she refuses to
1. 0 answers
2. asked by Bob
3. 511 views
Can someone please help me match up my vocad since I've gotten them all wrong in class the other day?1.__Mississippi River
1. 0 answers
2. asked by Mack
3. 506 views
discuss how interactions between the Earth systems affect the climateMary or Bob or whoever, Please note that <b>we don't do
1. 0 answers
2. asked by mary
3. 497 views
i need to rearrange the following equations, to make x the subject .r = sx^2 2t and 6y = 9 – 3x can some 1 help me im realy
1. 0 answers
2. asked by katie
3. 491 views
How do you calculate the wave speed of waves that are 0.15 m apart, and have a frequency of 2 Hz?Wavelength is given, frequency
1. 0 answers
2. asked by Sam
3. 491 views
I'm having diffulculty finding the answer through this passage. Could you please help me out?Industry accounts for 19 percent of
1. 0 answers
2. asked by Mack
3. 487 views
1.Which diatomic molecule below would be useful in saying good-bye?O2 N2 I2 Ta2 Li2 2.Which element is best for use in flash
1. 0 answers
2. asked by Lisa
3. 474 views
can you please check my work19mm=? m ?=.19??? .017km=? cm ?=1700? 61500cm/min =? km/h ?=.615? thank youuu! .019 (missed a
1. 0 answers
2. asked by George
3. 474 views
As a beginner, you should be beginning with regular verbs. I also have exercises, should you wish to do any of them.
1. 0 answers
2. asked by SraJMcGin
3. 465 views
during a cesarean section a transverse incision is made through the abdominal wall. Name the muscles incised and state teir
1. 0 answers
2. asked by Nancy
3. 458 views
HiCan someone give me a help in finding maths quiz websites for Ket Stage 3
1. 0 answers
2. asked by Fahad
3. 456 views
Questions with what I think correct:-Has the largest anion.D -Is the most electronegative.A -Has the highest bonding energy in
1. 0 answers
2. asked by Ryan
3. 449 views
explain how partial melting and fractional crystallisation produce felsic magma from more maficparent magmaWould this help:
1. 0 answers
2. asked by bob
3. 448 views
Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight north-south path, A being due north
1. 0 answers
2. asked by katie
3. 448 views
Is this statement correct? She is a very capable black woman?Remove the word "black" and it's fine. Or simply say, "She's very
1. 0 answers
2. asked by Simone Blake
3. 443 views
How come Silicon differs from the trend of increasing electron affinity as we move to the right in a period? Is it because more
1. 0 answers
2. asked by Steve
3. 440 views
does log base of 4 sqrt(t/s)=1/2log base of 4 t - 1/2log base of 4s?sqrt=square root thanks yes yah thanks!
1. 0 answers
2. asked by Fiona
3. 429 views
Oh! and I forgot one more.Bacteria - I picked e.watershed Is that correct?
1. 0 answers
2. asked by Mack
3. 390 views
2x2/5y2what is supposed to happen here?
1. 0 answers
2. asked by sonia
3. 353 views

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