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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. 7,759 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. 6,846 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. 6,577 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. 3,852 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. 2,918 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. 2,553 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. 2,487 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. 1,708 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. 1,685 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. 1,627 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. 1,603 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. 1,569 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. 1,350 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. 1,315 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. 1,219 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. 1,204 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. 1,163 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. 1,120 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. 1,068 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. 1,031 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. 986 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. 962 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. 962 views
How much hydrogen gas (H2) forms when 54 g of aluminum reacts with excess HCI ?
1. 1 answer
2. asked by Ed
3. 961 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. 956 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. 949 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. 944 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. 933 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. 928 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. 904 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. 898 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. 897 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. 869 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. 866 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. 824 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. 792 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. 785 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. 780 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. 779 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. 770 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. 764 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. 761 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. 760 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. 758 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. 741 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. 730 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. 721 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. 718 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. 717 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. 710 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. 709 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. 705 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. 705 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. 701 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. 699 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. 698 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. 697 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. 687 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. 683 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. 683 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. 682 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. 672 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. 671 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. 667 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. 652 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. 652 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. 648 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. 638 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. 638 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. 632 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. 631 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. 626 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. 624 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. 622 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. 618 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. 616 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. 612 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. 600 views
Graph this trigonometric function. y=-4cos(x/2+3.14)+1
1. 1 answer
2. asked by Bob
3. 599 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. 587 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. 586 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. 583 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. 581 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. 578 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. 578 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. 569 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. 568 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. 568 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. 566 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. 564 views
I don't really understand this term. Could you please explain it to me.
1. 1 answer
2. asked by Anonymous
3. 559 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. 559 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. 555 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. 543 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. 542 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. 541 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. 539 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. 536 views
What does this term mean?Does it basically mean.. The rate at which the general level of prices for goods and services is
1. 1 answer
2. asked by Anonymous
3. 534 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. 532 views

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