# Questions Asked onDecember 17, 2006

1. ## Chemistry

In a lab, we added NH3(aq) to CuSO4(aq), and the solution turned dark blue with a precipitate. The problem is that the products ( Cu(NH3)4 and SO4) should be soluble, no? The question is then, what is the percipitate? The ppt is Cu(OH)2. The dark blue

page # D-76 What Relation Is a Doorstep to a Doormat? Both are stepped on. no You didn't put any parameters on this and I think its a great answer. How bout the relation being a stepson (steps on) I got astearther.... No wait it's A Step Farther eh....??

Page # D-74 How Would You Describe a Dead Skunk? A skunked skunk. no What kind of answers do you have for the ones you have correct? exstankt extinct

4. ## math

concrete can be purchased cubic yard. How much will it cost to pour a slab 17 feet by 17 feet by 2 inches for a patio if the concrete costs \$40.00 per cubic yard? Change 2" to feet, find volume of patio in cubic feet, change to cubic yards, and multiply by

5. ## Chemistry

Quick question, since FePO4 is insoluble, will that mean a precipitate will form? During the experiment I don't remember seeing a precipitate. Is that my error, or is the precipitate hard to see? Sure. Adding Na3PO4 will make a big difference. FePO4 is

6. ## physic

1.What is the gravitational force between two trucks, each with a mass of 2.0 x 10^4 kg, that are 2.0 m apart? (G = 6.673 x 10^11 N•m^2/kg^2) 2.Each tire of an automobile has an area of 0.026 m^2 in contact with the ground. The weight of the automobile

7. ## MATH

I NEED TO SOLVE FOR Y AND X im getting rele confused on this. ok here is the prob. x+y=5 x-2y=-4 equation 1 x+y=5 equation 2 x-2y=-4 Multiply equation 1 by -1. Add equation 1 to equation 2. The x term cancels. Solve for y. THEN, put the value of y into

8. ## english

What are the rules on citing? My teacher is requiring a citation for one of my paragraphs that is in the middle of my paper. It is a website. How do I go about citing this? http://wwwold.ccc.commnet.edu/mla/ At this website, hold your mouse over CITING

9. ## Speech

I need an interesting way to start a speech on how to ride a dirt-bike Introduction: Riding a dirt bike can be a rewarding and challenging experience. Above all else to make it rewarding there are several safety precautions. what gear to wear, bike

10. ## calculus

I am given a table that shows the temperature of the water and the days, which looks like this: t(days) W(t) (in Celcius) 0 20 3 31 6 28 9 24 12 22 15 21 the temperature of the water in a pond is a differentiable function W of time t. The table above shows

11. ## chemistry

Which element has atoms that can form single, double, and triple covalent bonds with atoms of the same element? the choices are florine, oxygen,carbon and hydrogen. i also need a explanation of why its the right answer. thanks for helping :) How do we see

12. ## Chemistry

How do i figure this? State whether the following compound contain polar covalent bonds, non-polar covalent bonds, or ionic bonds, based on their electronegativities. 1)KF_________ Look up the electronegativity values for K and F and make your decision. We

13. ## Jewelry markings

I have to find out what certain markings on jewelry mean. 925-I think it means silver, but I have to be more in depth. han-hand made? S O- no idea F-no idea 925 is indeed sterling silver. I have no idea on the others. The 925 specifically means 92.5%

14. ## math, algebra

i just want to re make sure that the following question is correct. (1) List all the factors of 16 My answer: 1,2,4,8,16 That is correct. They may not want 1 and 16 to be included, since every integer has 1 and itself as factors. so i should take away the

15. ## chemistry

what is the total number of electrons shared in a double covalent bond between two atoms, and why? four. One covalent bond is two electrons, a double convalent is twice that. why wouldnt it be 8? Because 2*2=4. Reread Bob Pursley's answer. Two electrons is

16. ## calc

Find the critical number(s) of f(x)= abs(2x-4) What is the derivative of abs(2x-4)? Is it abs(2)? No. You have to specify the domain of x. At x=2, this function has no derivative. At x>2, f' = d (2x -4)/dx= 2 at x

17. ## math

Bill has 30 coins, some nickels some dimes. They equal \$2.10. How many nickels are there? What is the equasion used to solve this problem? Let d=# dimes. let n=# nickels. d + n = 30 d(\$.10) + n(\$.05) = \$2.10 Two equations and two unknowns. Solve them

Bill has 30 coins, some nickels some dimes. They equal \$2.10. How many nickels are there? What is the equasion used to solve this problem? When I solve it, I get 4.3 nickels, but how can there be .3? Please help me solve I posted the two equations for this

19. ## honors geometry

The triangle with vertices at A (-2, 2), B (-8, -1) and C (-8, -1) is reflected about the line y= 2x + 1. Express the coordinates of the reflection of A as an ordered pair. How do you set this problem up? Thank you. A neat way to check your thinking. Draw

20. ## Critical Thinking

What is the meaning of validity, truth, and soundness as they relate to the area of logical syllogisms http://www.memoriapress.com/articles/logic.html scroll to Truth, Validity and Soundness What is the meaning of validity, truth and soundness as they

21. ## english

what is a noun? a noun is a person, place, thing, or idea Anonymous is exactly right... Here is a great website on all sorts of nouns with examples for each. http://www.arts.uottawa.ca/writcent/hypergrammar/nouns.html

22. ## Energy

174520 = (massboiled) (2260) .1716 = massboiled so .1716? Suppose a burner transfers 325 kJ of energy to 450 kg of liquid water at 20 C degrees. What mass of the water would be boiled away? The first energy going in heats the water: energy=mass*c*(100-20)

23. ## chemistry

how would you draw a chemical bond representation for: NH4 plus 1 thanks for your help:) It is almost impossible to draw Lewis electron dot structures for ANY molecule or ion on these boards BUT here is a try.    H    : H:N:H+

24. ## social studies

Why do countries want to be the most powerful? What is it they can control once they have reached that status? They can control the resources, money and people of the areas they have influence over, to the benefit of their industries and investors. Thanks!

25. ## chemistry

How is the way metals form ions different from the way nonmetals form ions? Think about this. When Na, a metal, becomes an ion, what must it do? It has one electron in its outside shell. When Cl, a non-metal, forms an ion, what must it do? It has seven

26. ## Chemistry

why is distillation the only way we can separate out a solute and solvent from a solution. The solute is dissolved down to the molecular level, and physical separation at this small scale is difficult. However, one does not have to distill, Ever hear of

27. ## Social Studies

What did the Europeans call the Native Americans? Indians "Noble savages' or just "Savages' were also commonly used Are you sure about savages and not Indians? Columbus was the first person to call the natives Indians because he thought he was in the East

28. ## TO JOEY AND OTHERS

Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even better subject heading would

29. ## TO SYED AND OTHERS

Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even better subject heading would

30. ## Researching project

I'VE BEEN DESPERATELY LOOKING THROUGH SITE AND SITES FOR HOUR BUT I CANT FIND ANY article that suit my teacher's taste and he told me to re do it again... anyone please help this is what he wrote "I am looking for published articles related to the

31. ## CRAZY ALMOST IMPOSSIBLE AP MATH PROBLEM

there is a field (112m x 75m) that are split into 13 square plots. What are the dimensions [must be in whole meters]. there is a picture, but the boxes are not to scale so i don't know how to get started on this problem. if someone could help me this would

32. ## math

Solve for each system and equations. y=-x-2 y=3x+2 set -x-2=3x+2 solve for x. thanx i was minusing 2 instead of adding two thanx alot

33. ## fixed problem

sorry my friend is on my computer and i told him to get off i will make sure he doesnt ever get on this site again, sorry for your trouble Your ISP addresses are being reported to your provider for your lewd behavior on this homework help website. You'd be

34. ## metric system

does 1 liter = 1 kg? If the liquid is H2O, yes. To convert volume to mass, you need to know the density. They are not the same thing. Volume = Mass/Density and the volume you're talking about is in liters? 1 mL = 1cm (for water) so convert it to figure it

35. ## more israel questions

what are the most common chracteristics of native music of israel http://www.google.com/search?hl=en&q=israeli+music+traits You should find lots of information in these sites. =)

36. ## MATH

im so stupid, uhh whats 1 plus 1 is it 11? I'm sorry--that was not me. I am trying to get some help understanding the problems. I am not stupid. 1 + 1 = 2 1 + 10 = 11 And I guess we could make a joke about 1 + 1 being 11 if we were so inclined. Someone

37. ## career course

how would this quesFill in the blank with the correct answer. You are a production manager for a pill manufacturer. You must get the materials for a production run. The order calls for 10,000 pills. The materials to go inside the 10,000 pills cost a total

38. ## maths

firstly we have been given the function y= x^3 - 4x whose graph we have to draw.then we are given the function y = (x-1)^3 -4(x-1) whose graph we have to draw as well.Now i know it is a transformation of the first graph,but i cant see how.Any help would be

39. ## food

i love bacon, who knows were you get it for a cheap price I bought bacon today at my local grocery store in Michigan. Most brands were \$4.00 a pound, with a couple of brands above and below that price.

40. ## math, algebra

this next one i want to make sure that what i'm answering is correct. (1) A rectangle has sides of 3x-4 and 7x+10. Find the expression that represents its perimeter. My answer for solving: P=2L+2W P=2(3w-4)+ 2(7x +10) p=6w-6+14x+10 My final answer:

41. ## economics

how change in "Consumer Taste" and "Change in Expectation" effect upon Supply and Demand in Economic? In a plenitude of ways. Fashion and other fads come and go, increasing the demand for "hot" products, decreasing for "cold." Producers, in an attempt to

Fill in the blank with the correct answer. You are a production manager for a pill manufacturer. You must get the materials for a production run. The order calls for 10,000 pills. The materials to go inside the 10,000 pills cost a total of \$500.00. A box

43. ## calculus

Let f(x) = (x+1)/(x-1). Show that there are no vlue of c such that f(2)-f(0) =f'(c)(2-0). Why does this not contradict the Mean Value Theorem? I plugged 2 and 0 into the original problem and got 3 and -1 . Then I found the derivative to be

44. ## MATH

WHAT IS A VERB? This is an English question -- not a math question. A verb is a word that shows action or a state of being.

45. ## ethics

Write a 1,050- to 1,400-word research paper identifying the linguistic, political, social, economic, religious, and familial conventions and/or statuses of four Hispanic groups living in the United States. Your paper should cover Mexican Americans, Puerto

46. ## Motion equation

A stone, which weighs 0.62kg, is thrown, at 5.5ms, its kinetic energy at its maximum height above the surface is 2.3J, what is the height of the stone at this point? Any eqautions or advice gratefully received. I assume that is 5.5 m/s, the initial

47. ## science/biology

how many years do 9 year old girls have iregular periods? at what age a woman's period stop? PLEASE HELP ME WITH THE HOMEWORK THANK YOU! i'm pretty positive there is not an exact age or amount of years-- are you supposed to have a time frame?

48. ## Logarithms

e^x+2=13 solve by logarithm Take the ln of both sides. x*ln e = ln 13. You can do this on your calculator. If you don't know the value of e, go to www.google.com and type in e and search. The value is about 2.7. or type this in the google search window

49. ## math, algebra

I want to make sure on this one as well. (1) Subtract: 4 and 1/3 minus 1 and 1/4 My answer: 3 and 1/12 or is it 3 and 1/3 3 and 1/12 thank you

50. ## Science

Which of the following life formsis a vertebrate? a turtle a mosquito aflower plant or an octopus? http://en.wikipedia.org/wiki/Turtle A turtle has about sixty bones attached to the shell. 456 The spaces in the spongy bone are filed with ?

I PLEDGE ALLEGIANCE TO THE FLAG OF UNITED STATES OF AMERICA WHAT ARE THE NEXT LINES? And to the Republic, For which it stands, one Nation, Under God, Indivisible, With liberty and justice for all

52. ## chemistry

i know the answer is carbon, but i don't see what you mean, and on my homework i have to describe why its the right answer, thanks for your help by the way Use the links I posted for you the first time you asked

53. ## drwls, math ,algebra

should i take then away the 1, and 16 from the question of the listing all the factors of 16. so i should leave it as: list all the factors of 16: 2,4,8 I would leave out 1 and 16, since the pair is obvious and does not divide up the number 16 into smaller

54. ## QUESTION

I THINK PEOPLE IN THIS COUNTRY THINK THAT 13 IS A UNLUCKY NUMBER. MY COUSIN IS 13 YEARS OLD. IS SHE A UNLUCKY PERSON? WHEN PEOPLE ARE 13 YEARS OLD ARE THEY UNLUCKY PEOPLE OR HUMAN BEING/PERSON? It is said, that 13 is unlucky..which lead religious people to

56. ## Biology

what are the three environmental factors that affect photosynthesis? amount of sunlight. Temperature. Concentration of CO2 in the environment. Water availability to the plant. what kind of lenses is shown on the micrsope to the righty?

57. ## english

Good suggestion from Bob Pursley. Also, if you want someone to check your work, please be sure to re-post with the answers you've come up with. =) words that begin with IN a narrow strip ofwater which goes from a sea or lake into the land-I N _ _ T food or

58. ## help

what are 5 interesting instruments indigenous In Israel. Also what are the three most important muscians. These sites have interesting informatin about Israel's music. (Broken Link Removed) http://en.wikipedia.org/wiki/Music_of_Israel

59. ## math

what is 400 divided by 3? 133.33333333

60. ## math

now i have to solve for y. i already no that x=-1. y=-1-2 y=3(-1)+2 -1 -2 = -3 3(-1)+2 = -3 +2 = -1 THANX I WAS SO CONFUSED ON THAT

61. ## solve

e^c-2c = e-2 what is c? ummm, 1? e^1 = e 2*1 = 2 No! Answer is 0.351 How do I get this? c = 1 is one solution. To find the other, you can proceed as follows. e^c-2c - e + 2 = 0 put f(c) = e^c-2c - e + 2 Newton's Method (approximate functon by the tangent)