Questions Asked on April 15, 2008

What happened when the Crossword Puzzle Champion died?
1. 10 answers
2. asked by Matt
3. 6,216 views
Briefly explain why the transitions associated with the Lyman series correspond to wavelengths in the ultraviolet region of the
1. 1 answer
2. asked by natash
3. 3,328 views
If two salts AX and BX2, have the same Ksp values of 4.0x10^-12 at a given temperature, thenA. their molar solubilities in water
1. 3 answers
2. asked by LT
3. 3,284 views
what is the molar solubility of lead sulfate in 1.0 X 10^-3 M Na2SO4?The Solubility Product Constant PbSO4 Ksp= 1.8 x 10^-8 The
1. 8 answers
2. asked by LT
3. 3,037 views
You want to take a full length photo of your friend who is 2 m tall, using a 35 mm camera having a 50 mm lens. The image
1. 1 answer
2. asked by J
3. 2,306 views
If the concentration of a saturated solution of SrCO3 is 0.000040 mol*L^-1, what is the value for the solubility product
1. 8 answers
2. asked by LT
3. 1,828 views
The Binary Ice Cream Shoppe sells two flavors, vanilla and chocolate. On Friday, the ratio of vanilla cones sold to chocolate
1. 1 answer
2. asked by abby
3. 1,663 views
5)a. Electrons accelerated by a potential difference of 12.23 V pass through a gas of hydrogen atoms at room temperature.
1. 3 answers
2. asked by Sandhya
3. 1,630 views
calculate the equilibrium constant for the reactionas written at 940K.NH4Cl->NH3+HCl delta H= NH4Cl -1779, NH3 -46, HCl -92
1. 0 answers
2. asked by david
3. 1,547 views
A boy is cycling at a constant speed along a straight road to his school. The postions of the boy after fixed time intervals are
1. 5 answers
2. asked by Jon
3. 1,491 views
The dissociation for a weak base BOH in water found to be 1.25 x 10^-6. What is the concentration of H+ in a 3.2M soluton of
1. 5 answers
2. asked by LT
3. 1,441 views
How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion inacidic solution to form iron (III)
1. 3 answers
2. asked by Liz
3. 1,428 views
An owl has good night vision because its eyes can detect a light intensity as small as 5.0*10^-13 W/m2. What is the minimum
1. 1 answer
2. asked by rick
3. 1,422 views
1)7Be decays with a half-life of about 53 d. It is produced in the upper atmosphere, and filters down onto the Earth's surface.
1. 2 answers
2. asked by Sandhya
3. 1,400 views
Reaction 1:Cu (strongest reducing agent) I- Ag Br- (weakest reducing agent) Reaction 2: Zn(strongestreducing agent) Pb Cu
1. 4 answers
2. asked by Anna
3. 1,375 views
What is the OH^- concentraton of a solution that is 0.10M in Na2C2O4?I have a couple of these concentration questions asking
1. 1 answer
2. asked by LT
3. 1,366 views
Reaction 1: I2(aq)Cu^+2(aq) Ag^+(aq)Br2(aq)Column 1---Column 2---Column 3---Column 4---Column 5 I-(aq)---X---X---T---T
1. 9 answers
2. asked by Joseph
3. 1,340 views
5) What are your overall conclusion about the article? Also give two original examples of how the information in the article
1. 3 answers
2. asked by Bizzy
3. 1,301 views
After replicated a DNA molecule with two strands three times, how many molecules of DNA are formed?Is eight the correct answer?
1. 1 answer
2. asked by Kally
3. 1,191 views
Please judge my answerQuestion:A solution of AgNO3 (45 mL/0.45 M) was mixed with solution of NaCl (85 mL/1.35 x 10-2 M) a)
1. 1 answer
2. asked by Abigail
3. 1,172 views
1)The velocity of sound in air is 332 m/s. If the unit of length is km and the unit of time is hour, what is the value of
1. 4 answers
2. asked by Jon
3. 1,151 views
What is the molar concentration of silver ion in a solution containing 1.3 × 10–4 M CrO42–, saturated with Ag2CrO4?The
1. 2 answers
2. asked by LT
3. 1,130 views
Because solution pH is a measurement of either [H3O+] or [-OH] concentration, the acidic orbasic nature of the acids and bases
1. 0 answers
2. asked by David
3. 1,116 views
If this be error and upon me proved, I never writ, nor no man ever loved.These lines are an example of a/an a. quatrain b. octet
1. 1 answer
2. asked by Liz
3. 1,110 views
Equal volumes of 1 M BaCl2 and 1 M NaSO4 are mixed. What effect will the addition of more Na2SO4 solution have on the
1. 3 answers
2. asked by LT
3. 1,091 views
My English teacher hates this story I wrote. So do I, but I don't know how to make it better. It is a compare and contrast paper
1. 2 answers
2. asked by Taylor
3. 1,088 views
What evidence can you cite for the wave nature of light? For the particle nature of light?
1. 2 answers
2. asked by need help :-(
3. 1,086 views
Use the formula h= -16t^2+250t to model the height 'h' in feet of a model rocket 't' seconds after it has luanched. Determine
1. 1 answer
2. asked by Tanya
3. 1,083 views
The following calculations help you see how the ratio of debt to GDP changes from one year to the next. Suppose that in a
1. 1 answer
2. asked by Jenny
3. 1,036 views
Estuve trastornado tan cuando mi hermano pidió que el hombre polaco saliera de nuestra casa. Entonces fui abajo al sótano a
1. 1 answer
2. asked by Alex
3. 1,020 views
A bottle and a cork together cost $1.00. The bottle cost 90 cents more than the cork. How much does the cork cost?Bottle - 95
1. 4 answers
2. asked by need help!!
3. 1,010 views
A law enforcement officer in an intergalactic "police car" turns on a red flashing light and sees it generate a flash every 1.5
1. 2 answers
2. asked by rick
3. 986 views
What would happen to the metals if iron nails were used to secure sheets of copper to a roof?
1. 1 answer
2. asked by ashley
3. 977 views
the pros and cons of oil issues
1. 1 answer
2. asked by mariaya
3. 965 views
How do you calculate the square footage on the surface of a cylinder if you know the diameter and length?
1. 3 answers
2. asked by Dennis
3. 959 views
A sample of gas occupies 29 L under a pressure of 1.3 atm. What would the resulting volume be if the pressure were increased to
1. 4 answers
2. asked by riya
3. 951 views
Find the radius of a right cone with the slant height 21m and the surface area 168pi m^2
1. 1 answer
2. asked by Help me!!
3. 933 views
I found a pattern and I was wondering if it applies to all reactions.The more times there is evidence of a redox reaction
1. 1 answer
2. asked by Joseph
3. 931 views
Enough water is added to 0.35 g of benzoic acid to make 1000 mL of solution. What is the pH?Ionization Constant for Benzoic Acid
1. 2 answers
2. asked by LT
3. 927 views
The first step of the synthesis is described by the reaction below. When 2.000 g of Fe(NH4)2(SO4)2 6H2O is mixed with 13 mL of
1. 3 answers
2. asked by Lindsey
3. 915 views
Please let me know if my answer to the following question is correct.Question: 25 mL of standardized 0.45 mol/L NaOH is titrated
1. 2 answers
2. asked by Abigail
3. 894 views
Factor and explain each step2x^2-13x-45
1. 2 answers
2. asked by homework help!!
3. 888 views
Can I get this proofread please?The hypothesis of this experiment claimed the apterous mutation would be recessive. The results
1. 1 answer
2. asked by Bizzy
3. 877 views
Please let me know if my answer to the following question is correct.Question: What is the concentration of a weak base if its
1. 2 answers
2. asked by Abigail
3. 852 views
why are the atomic emission line spectra different for each element?
1. 1 answer
2. asked by natash
3. 851 views
In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water,the oxidizing agent
1. 4 answers
2. asked by Amy
3. 842 views
Hi!I'm currently a freshmen in high school and next year AP World History is being offered to 11 graders. We have a assignment
1. 2 answers
2. asked by Joe Smith Bob
3. 840 views
Procedure:1. Place the zinc nitrate solution into a beaker and connect the zinc electrode so that it is partially submerged in
1. 1 answer
2. asked by Sarah
3. 831 views
A certain digital camera having a lens with focal length 7.5 cm focuses on an object 1.85 m tall that is 4.25 m from the lens.
1. 0 answers
2. asked by J
3. 823 views
The ionization constant of an acid, HX is 1 x 10^-5. When a mixture of 0.100 mol HXand 0.100 mol of NaX is diluted to a volume
1. 1 answer
2. asked by LT
3. 814 views
An electron and a positron each have a mass of 9.11*10^-31 kg. They collide and both vanish, with only electromagnetic radiation
1. 1 answer
2. asked by rick
3. 813 views
Where do you normally find information for topics that interest you? how do you know when sources are reliable? Explain:In order
1. 1 answer
2. asked by rose
3. 812 views
My science homework is to collect 10 food labels which i have done and write down the food energy per 100g from each food in
1. 1 answer
2. asked by amanda
3. 798 views
Franca Traveled 6.8km from one town to another Town. Where might Franca have traveled.
1. 6 answers
2. asked by inder
3. 781 views
Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with
1. 4 answers
2. asked by will
3. 781 views
A car accelerates from rest at 5 m/s^2 for 5 seconds. It moves with a constant velocity for some time, and then decelerates at 5
1. 1 answer
2. asked by Jon
3. 780 views
This is an SAT Question of the Day. The sum of the digits of a three-digit number is 12. If the hundreds digit is 3 times the
1. 4 answers
2. asked by Anonymous
3. 775 views
trade-offs are alternatives that people give up when they choose one course of action over another.Who makes trade-offs? Why do
1. 3 answers
2. asked by me
3. 772 views
All of the following species would be expected to be able to function a Lewis bases EXCEPTa. F- b. O2- c. OH+ d. H2O BF3
1. 1 answer
2. asked by LT
3. 768 views
In a community of 416 people, each person owns a dog or a cat or both. If there are 316 dog owners and 280 cat owners, how many
1. 4 answers
2. asked by Lisa
3. 755 views
Please judge my answer:Question: 24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution.
1. 1 answer
2. asked by Abigail
3. 753 views
I am really confused!!!how do you make a table for solutions? For example y=2x The table of solutions shows 0,0; 1,2;
1. 1 answer
2. asked by C
3. 733 views
Procedure:Place the zinc nitrate solution into a beaker and connect the zinc electrode so that it is partially submerged in the
1. 1 answer
2. asked by Sarah
3. 728 views
What does wave interference have to do with the electron energy levels in an atom?
1. 1 answer
2. asked by need help :-(
3. 727 views
In Music, What Does "Allegro" Mean?
1. 1 answer
2. asked by Matt
3. 712 views
How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to
1. 1 answer
2. asked by will
3. 709 views
A machine earns the company revenue at a continuous rate of 62000 t + 43000 dollars per year during the first six months of
1. 0 answers
2. asked by Jackie
3. 709 views
I am trying to study for the TEAS test and I wanted to know if anyone knew any resourceful websites or had any advice in
1. 1 answer
2. asked by Camron
3. 701 views
What is the function of fiber in the body?o What are some examples of food sources of dietary fiber? o What is the difference
1. 1 answer
2. asked by Dawn
3. 692 views
How do you calculate the pH, pOH, [H3O] and [OH] for a 0.067 M solution of sodium iodate
1. 1 answer
2. asked by LT
3. 691 views
Hi, in to Kill A mockingbird , can you please help me out, and tell me any significant events that happen in CHAPTER 23? I am
1. 8 answers
2. asked by May
3. 688 views
A skier starts at rest on the top of Mt Circular, a strange, smooth, icy hill shaped like a hemisphere. The hill has a constant
1. 1 answer
2. asked by Courtney
3. 687 views
According Pyne, how have post-9-11 government responses affected prejudice and discrimination against Muslims, Arabs, and
1. 1 answer
2. asked by brady
3. 662 views
1. ex) I like her very much.In this sentence, 'like and her' link together. They are pronounced as a linking sound or liaison
1. 1 answer
2. asked by John
3. 657 views
Being a New Yorker, I found the panorama of New York City, located at the Queens Museum of Arts, to be very interesting. How
1. 3 answers
2. asked by MARY
3. 654 views
In order to find information for topics that interest me, I will go to the University library. When using different sources such
1. 2 answers
2. asked by rose - Ms. Sue
3. 651 views
Arrange the three metals(Cu, Zn, and Mg) in order of their relative strengths as reducing agents, placing the strongest first.Ar
1. 0 answers
2. asked by ashley
3. 628 views
In this sentence "All of the reports except one were completed." I know that the subject is all but what is the word except in
1. 2 answers
2. asked by Debbie
3. 622 views
What are a few significant differences between laboratory thermometers and clinical thermometers?
1. 2 answers
2. asked by Alex
3. 617 views
Advertising is an important aspect of the business world.a. which business environment is it especially important and explain
1. 2 answers
2. asked by Jay
3. 615 views
Please judge my answer, thank youQuestion: What is the pH of a 1.24 mol/L solution of HCN(aq) if its Ka = 6.2 x 10-10? Answer:
1. 1 answer
2. asked by Abigail
3. 615 views
Which one of the following salts is obtained by the reation of a weak acid with a strong base.MgCl2 NH4F LiClO4 NaCl K2SO3
1. 1 answer
2. asked by LT
3. 614 views
Choose one of the L'Oreal corporation products.1. Answer- Mascara Describe the components of this product value. (Help) What
1. 1 answer
2. asked by Jo
3. 611 views
Olympic Theatre Inc. owns and operates movie theaters throughout Texas and California.Olympic Theatre has?declared the following
1. 0 answers
2. asked by Sarah
3. 606 views
How do you analyze a poem???...i always have trouble trying to understand the poem...especially metaphors because they have a
1. 1 answer
2. asked by Vanessa
3. 604 views
hey drbob222do you think you could help me out with this lab. Lab: Electrolytic Cells Purpose: The purpose of this experiment is
1. 1 answer
2. asked by unknown
3. 594 views
Lesson objectiveWe can learn the right life attitude through school life. Let's learn the expressions necessary in school life.
1. 1 answer
2. asked by John
3. 590 views
To be worryless, could mean life itself. Many people struggle through everyday life - Children, Bills, School, but most
1. 1 answer
2. asked by Walker
3. 587 views
Help please!:By what factor (2x, 4x, etc.) would the per capita GGP have to be increased to U.S. per capita GGP to equal the
1. 0 answers
2. asked by Alicia
3. 585 views
What happened after Chief Short Cake died?
1. 1 answer
2. asked by Matt
3. 583 views
How do you solve the rational equation:(n/n-2)+(n/n+2)=(n/n^2-4) I know that the LCD of the equation is (n+2)(n-2) because that
1. 3 answers
2. asked by Katie
3. 583 views
Do enzymes speed up or slow down chemical reactions?
1. 1 answer
2. asked by justin
3. 571 views
what colored lines are expected in the atomic emission spectrum for mercury?
1. 1 answer
2. asked by natash
3. 563 views
sorry the first one didn't post properlyLab: Electrolytic Cells The purpose of this experiment is to test the method of
1. 1 answer
2. asked by anna
3. 562 views
Estuve trastornado tan cuando mi hermano pidió que el hombre polaco saliera de nuestra casa. Entonces fui abajo al sótano a
1. 2 answers
2. asked by Alex
3. 554 views
unscrammble the word oucocbitinmulaa
1. 2 answers
2. asked by Patty
3. 551 views
My daughter has to write an advertisement using 3 different propaganda techniques. I cannot find a definition or sample of
1. 2 answers
2. asked by Mary
3. 548 views
how can you acess knowldege on science using gardner's Intelligence?
1. 2 answers
2. asked by patty
3. 547 views
HiCan anyone tell me why using the scientific name for plants is important in the context of their evolutionary relationship ...
1. 0 answers
2. asked by Leo
3. 540 views
explain three rules for exponents
1. 1 answer
2. asked by anaya
3. 534 views

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