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2011
April

Questions Asked on April 16, 2011

1)Which of the following compounds has the largest lattice energy:LiF LiCl NaF NaCl 2)Which of the following compounds has the
1. 2 answers
2. asked by Abi
3. 7,692 views
The Length of time (T) in seconds it takes the pendulum of a clock to swint through one complete cycle is given by the formula
1. 3 answers
2. asked by Carolyn
3. 6,791 views
The pressure at the bottom of a vessel filled with liquid does not depend on:a- the acceleration of gravity b- the liquid
1. 3 answers
2. asked by DMITRIC
3. 6,520 views
A rooming house has three rooms that contains four beds, three beds and two beds respectively. In how many ways can nine quests
1. 3 answers
2. asked by David
3. 3,800 views
convert the polar equation to rectangular form.1.) r sec(theta) = 3 2.) r = 4 cos(theta) - 4 sin(theta) convert from rectangular
1. 2 answers
2. asked by YOSHI
3. 2,860 views
Hydrogen and carbon dioxide react at a high temperature to give water and carbon monoxide.H2(g) + CO2(g) --> H2O(g) + CO(g) (a)
1. 6 answers
2. asked by Rachel
3. 2,499 views
The length of a rectangle is decreasing at the rate of 2 cm/sec, while the width w is increasing at the rate of 3 cm/sec. At
1. 1 answer
2. asked by Janet
3. 2,450 views
Using standard reduction potentials, calculate the standard E¡Æcell, emf, for each of the following reactions. State if each
1. 3 answers
2. asked by Anna
3. 1,660 views
The following phrases are bullet points in a letter. Which one is not in parallel form?A. Increase sales support staff B. Run
1. 3 answers
2. asked by Anonymous
3. 1,650 views
Can someone check if this is correct or not?Listed following are events or phenomena that occur during either the part of the
1. 1 answer
2. asked by Misty
3. 1,576 views
Challenger Deep in the Marianas Trench of the Pacific Ocean is the deepest known spot in the Earth's oceans, at 10.922 km below
1. 1 answer
2. asked by Anonymous
3. 1,508 views
A 1200 wrecking ball hangs from a 20 -long cable. The ball is pulled back until the cable makes an angle of 30.0 with the
1. 1 answer
2. asked by Mike aloe
3. 1,505 views
An equilibrium mixture of SO2, O2, and SO3 at 1000 K contains the gases at the following concentrations: [SO2] = 3.77 10-3
1. 1 answer
2. asked by Rachel
3. 1,285 views
A particular tower clock similar to Big Ben has an hour hand 2.70 m long with a mass of 62.0 kg, and a minute hand 4.80 m long
1. 0 answers
2. asked by mary
3. 1,269 views
An equilibrium mixture of the following reaction was found to have [COF2] = 0.255 M and [CF4] = 0.118 M at 1000°C. What is the
1. 2 answers
2. asked by Rebekah
3. 1,186 views
What does Economic Equity mean?I tried to come up with a simple definition for me to understand below. Economy in which the
1. 0 answers
2. asked by Anonymous
3. 1,174 views
polynomial complete the table for -7x^4+8x^3-3x^2+5x-9not sure if this is correct sorry I did not post my answer to check to see
1. 0 answers
2. asked by Anonymous
3. 1,134 views
A supertanker filled with oil has a total mass of 1.09 109 kg. If the dimensions of the ship are those of a rectangular box 260
1. 1 answer
2. asked by Anonymous
3. 1,074 views
Please grade my essay on 6Topic “Parents should not shoulder the full burden of their children’s college tuition. If
1. 3 answers
2. asked by Steven
3. 1,042 views
Find te Yield of Carbon Dioxide in an Alkaseltzer Reaction.Equation: HCH3COO (Acetic Acid)+ NaHCO3 (Sodium Bicarbonate) ->
1. 1 answer
2. asked by Sara
3. 990 views
This morning, Jinsu sent a text message to some of his friends. It said Park Jisung is coming to our school. The news became
1. 1 answer
2. asked by rfvv
3. 957 views
How much hydrogen gas (H2) forms when 54 g of aluminum reacts with excess HCI ?
1. 1 answer
2. asked by Ed
3. 936 views
Simplify I came up with 5.5(15x^5-21x^4+21x^2)/(3x^2 ) not sure if I did this the correct way it just doesn't seem right at all.
1. 1 answer
2. asked by please help me
3. 936 views
carolyn borowed $125 if the interest rate is 1.5% per month on the unpaid balance and she does not pay this debt for 1yr how
1. 1 answer
2. asked by Yenny
3. 933 views
I have a number of questions. please answer as many possible according your expertise.1. i have seen for sale fossils of ginger
1. 2 answers
2. asked by ain
3. 910 views
A heavy particle is placed at the top of a vertical hoop.Calculate the reaction of the hoop on the particle and the height at
1. 0 answers
2. asked by dharm
3. 902 views
Challenger Deep in the Marianas Trench of the Pacific Ocean is the deepest known spot in the Earth's oceans, at 10.922 km below
1. 0 answers
2. asked by HELP!!!!
3. 902 views
Castle’s Family Restaurant has eight restaurants in the Northern California area with approximately 300-340 employees. Most of
1. 2 answers
2. asked by Rich
3. 891 views
I was given this problem to solve and no matter what order I multiply the variables I don't get the right answer.27xy, when
1. 4 answers
2. asked by Aria
3. 872 views
Gail received a 7% raise last year. If her salery is now $27,285 what was her salery last year?
1. 5 answers
2. asked by Yenny
3. 869 views
A 15-kg chandelier is suspended from the ceiling by four vertical steel wires. Each wire has an unloaded length of 5 m and a
1. 0 answers
2. asked by Anonymous
3. 854 views
A tank of height H is filled with water and sits on the ground, as shown in the figure. Water squirts from a hole at a height y
1. 2 answers
2. asked by HELP!!!!HELP!!!!
3. 849 views
how do you find the square root of any number with long division and not a calculator? I don't like calculator readings. They
1. 1 answer
2. asked by Aria
3. 848 views
I have to do an assignment for SOSE.I have to do a Medieval Webquest on Medieval women. But I have no idea how to do it, I have
1. 1 answer
2. asked by Caity
3. 827 views
Tuyns et al. (1977) carried out a case-control study of esophageal cancer in the region known as Ille-et-Vilaine in Brittany,
1. 1 answer
2. asked by Lyn
3. 785 views
I have a couple physics questions I need help with please! If you could show me step-by-step directions, I'd really appreciate
1. 1 answer
2. asked by physicsclass
3. 745 views
2. For which value(s) of a does the system of equations(a-3)x+y=0 x+(a-3)y=0 have non-trivial solutions
1. 1 answer
2. asked by muna
3. 740 views
what is the pH change after the addition of 10mL of 1.0M sodium hydroxide to 90mL of a 1.0M NH3/1.0M NH4^+ buffer? Kb ammonia=
1. 2 answers
2. asked by marie
3. 737 views
A fountain sends water to a height of 116 m. What is the difference between the pressure of the water just before it is released
1. 2 answers
2. asked by HELP!!!!
3. 732 views
An electrochemical cell that uses the reactionTi^3+ + 2Cr^2+ -> Ti^1+ + 2Cr^3+ Has a standard cell potential of E¢ªcell =
1. 1 answer
2. asked by Anna
3. 731 views
Peter (P) and Jamie(J) have computer factories that are 132 miles apart. They both ship their completed parts to Diane (D).
1. 2 answers
2. asked by John
3. 730 views
On a standard 52 card deck, calculate the probability.that on card is either a queen or a heart draw one card, what is the
1. 3 answers
2. asked by sonney32
3. 726 views
A Science instrutor assigns his student one second of home work..the first week of school,two seconds. the second week four
1. 8 answers
2. asked by MIKE11
3. 723 views
Could you please explain to me what these terms mean in simplified terms. I already searched them up on net, and their
1. 3 answers
2. asked by Anonymous
3. 718 views
So for my amer lit class I am doing a project on American foods in the 1950s and I need a piece of literature to write my essay
1. 3 answers
2. asked by Sarah
3. 702 views
Suppose that you are standing on a cardboard carton that just barely supports you.What would happen to it if you jumped up into
1. 1 answer
2. asked by Emma
3. 699 views
Question:“According to a recent study, professional bodybuilders who used Train & Gain, a new protein supplement, over the
1. 3 answers
2. asked by Steven
3. 696 views
convert the polar equation to rectangular form.1.) r sec(theta) = 3 2.) r = 4 cos(theta) - 4 sin(theta) convert from rectangular
1. 0 answers
2. asked by YOSHI
3. 680 views
A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly
1. 0 answers
2. asked by unk
3. 678 views
50=3(s = 16)- 2(s - 2)I tried 3s+2s - 48-4 = 50 5s - 44 -44 = 50 - 44 am I on the right track ???
1. 1 answer
2. asked by Caroline
3. 669 views
1. I think watching TV is bad because we cannot study effectively.2. I think watching TV is bad because we can become violent as
1. 1 answer
2. asked by rfvv
3. 667 views
1. He took a flight to his hometown.(What does 'flight' mean here? Does 'flight' mean 'airplane'?) 2. Your childish games don't
1. 1 answer
2. asked by rfvv
3. 666 views
Using standard reduction potentials, calculate the standard E¡Æcell, emf, for each of the following reactions. State if each
1. 0 answers
2. asked by Anna
3. 664 views
According to the book Are yoy Normal?, 40% of all US adults try to pad their auto insurance claims to cover their deductible.
1. 2 answers
2. asked by yo
3. 663 views
Three objects -- two of mass m and one of mass M -- are located at three corners of a square of edge length l. Find the
1. 1 answer
2. asked by mary
3. 663 views
I am sorry I do not know what happens the symbolism, so I just deleted the symbols. Is it works for you that deleted the
1. 2 answers
2. asked by Anna
3. 650 views
The input piston of a hydraulic press is 20mm in diameter, and the output piston is 10mm in diameter. an input force of 1.0N
1. 0 answers
2. asked by DMITRIC
3. 646 views
why the skin cells of an adult must divide?is it because they are in the direct contact with the things from the outside world.
1. 0 answers
2. asked by kim
3. 645 views
A box with a volume V = 0.04 m3 lies at the bottom of a lake whose water has a density of 103 kg/m3.(a) How much force is
1. 2 answers
2. asked by Anonymous
3. 644 views
Blood pressure is usually reported in millimeters of mercury (mmHg) or the height of a column of mercury producing the same
1. 1 answer
2. asked by Anonymous
3. 644 views
A child loses his balloon, which rises slowly into the sky. If the balloon is 17 cm in diameter when the child loses it, what is
1. 0 answers
2. asked by Anonymous
3. 640 views
5(2x - 10)/2 + 14 = 19Tried working this, need help-please 5x-50/2 or 10x - 50/2
1. 1 answer
2. asked by Caroline
3. 628 views
Thank you very much for your help.I have some more sentences I'm not sure of. 1) I've been proud of myself when I won the
1. 1 answer
2. asked by Mike1
3. 625 views
1.Graph the function f(x) = (x + 3)3 by hand and describe the end behavior
1. 2 answers
2. asked by Anonymous
3. 623 views
Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g)If 1.0g of Mg is reacted with 10.0mL of 6.0M HCl, what volume of hydrogen gas will be
1. 2 answers
2. asked by Christina
3. 621 views
Exactly how many cubic inches of air can a fully inflated basketball hold if its radius is 4.2 inches?
1. 1 answer
2. asked by a hall
3. 619 views
Consider the following reaction.2 NO(g) + 2 H2(g) N2(g) + 2 H2O(g) An equilibrium mixture of this reaction at a certain
1. 1 answer
2. asked by Rebekah
3. 607 views
A ball of circumference 74.2 cm and mass 605 g is forced to the bottom of a swimming pool and then released. After initially
1. 2 answers
2. asked by HELP!!!!
3. 597 views
a simple random sample will be obtained from a normally distributed population. find the minimum sample size needed to be 95%
1. 0 answers
2. asked by lucy
3. 593 views
Metal cations can act as lewis acids in water to produce an acidic solution even though the metal ion contains no hydrogen.
1. 1 answer
2. asked by Jude
3. 591 views
A Science instrutor assigns his student one second of home work..the first week of school,two seconds. the second week four
1. 1 answer
2. asked by MIKE11
3. 590 views
a. In urban areas across our country, identify at least three technologies that Americans have become dependent upon in their
1. 0 answers
2. asked by TANYA
3. 588 views
I have a number of questions. please answer as many possible according your expertise.1. i have seen for sale fossils of ginger
1. 4 answers
2. asked by ain
3. 585 views
Shamroll inc. is a household products frim that is considering developing a new detergent. In evaluationg whether to go ahead
1. 2 answers
2. asked by savin1
3. 580 views
just looking for the constraints and variables.The Nestle’ Purina PetCare Company of St. Louis, Missouri, manufactures a
1. 3 answers
2. asked by ralph
3. 580 views
Event A you roll the die and it's evenEvent B you roll the die and it's less than 5 Roll the die once. What is the probability
1. 2 answers
2. asked by sonney32
3. 575 views
All I kind of know is that, the government controls the Command economies, they direct people on what to produce and what not.In
1. 1 answer
2. asked by Anonymous
3. 569 views
Graph this trigonometric function. y=-4cos(x/2+3.14)+1
1. 1 answer
2. asked by Bob
3. 566 views
Calcultate the volume (in mL)of 0.250M silver nitrate solution required to react completely with a 5.00g piece of copper wire.
1. 1 answer
2. asked by Tinkerbell*
3. 562 views
A racquetball with a diameter of 5.6 cm and a mass of 42 g is cut in half to make a boat for American pennies made after 1982.
1. 0 answers
2. asked by HELP!!!!
3. 558 views
How many moles of NaOBr- must be mixed with 0.1788 mole of HOBr and diluted to 1L to prepare a solution having a pH of 8.7043.
1. 1 answer
2. asked by Jude
3. 547 views
plz tell me about natureof bonding and forces ,heat of hydrogen,anti bandister bonding electrons.primary bond,secondary bond and
1. 0 answers
2. asked by naila
3. 544 views
Before i state my question I would like to note that I have to do a one tailed test but i don't know how to with the information
1. 0 answers
2. asked by Johnathon
3. 543 views
The input piston of a hydraulic press is 20mm in diameter, and the output piston is 10mm in diameter. an input force of 1.0N
1. 1 answer
2. asked by DMITRIC
3. 538 views
I forgot to add the following sentences. Thank you very much for the cooperation.1) They can remember details such as the
1. 1 answer
2. asked by Mike1
3. 535 views
I don't really understand this term. Could you please explain it to me.
1. 1 answer
2. asked by Anonymous
3. 533 views
Gene has less than 12 nickels,dimes,and quarters in his pocket.The probability of pulling out a nickel or a quarter is 3/4.The
1. 1 answer
2. asked by mike T
3. 532 views
sorry to take up your time again, acids and bases just really confuse me, i'd really appreciate your help again."What is the pH
1. 3 answers
2. asked by marie
3. 532 views
Can you please check these sentences? I'm still doubtful about the use of prepositions. Thank you very much.1) I was last
1. 1 answer
2. asked by Mike1
3. 525 views
A 150.0 mL cylinder containing CO at a pressure of 9.50 atm is connected by a valve to 9500 mL cylinder containing B5H9 at 2280
1. 1 answer
2. asked by noclueboo
3. 524 views
I am working on a HPLC lab where we are to determine the concentration of caffeine in two energy drinks. I am trying to figure
1. 2 answers
2. asked by Wheaties
3. 524 views
What is the molarity (mol/L) of sodium (Na) in a solution containing 0.4 mole ofNa + cation in400 mL of an aqueous (water)
1. 1 answer
2. asked by Ed
3. 522 views
topic: thermochemistryi'm not really sure how to go about his question. i'm not sure with formula to use. (perhaps Cspht= q/(m x
1. 2 answers
2. asked by marie
3. 519 views
There are a few sentences I can't make sense of. Can you please help me. Thank you very much in advance.1) Together with
1. 1 answer
2. asked by Mike1
3. 517 views
an isosceles trapesiod has legs that measure 24 units each. If the perimeter of the trapeziod is 150 units, what is the legth of
1. 1 answer
2. asked by natalie
3. 516 views
a satellite makes 10 revolutions per day around the earth.find its distance from the surface of the earth.
1. 0 answers
2. asked by Sayali
3. 515 views
Three objects -- two of mass m and one of mass M -- are located at three corners of a square of edge length l. Find the
1. 0 answers
2. asked by mary
3. 512 views
A square pool with 100-m-long sides is created in a concrete parking lot. The walls are concrete 87 cm thick and have a density
1. 1 answer
2. asked by please help!!!!
3. 509 views
This economy focuses on Competition.What goods and services should be produced? Electronic gadgets, Clothing, accessories,
1. 0 answers
2. asked by Anonymous
3. 497 views
A 30.9 L cylinder containing C2H4F2 at a pressure of 114.0 torr is connected by a valve to 0.865 L cylinder containing C4H10 at
1. 2 answers
2. asked by BOB PLEAE HELP!!!
3. 493 views

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