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2012
December

Questions Asked on December 5, 2012

1. Water at a pressure of 3.00 x 10 5th Pa flows through a horizontal pipe at a speed of 1.00 m/s. The pipe narrows to
1. 7 answers
2. asked by Leo
3. 8,964 views
Translate the following statement into an inequality: Five less than a number is at least nine.
1. 19 answers
2. asked by Anonymous
3. 8,923 views
Joseph had 7 1/4 ounces of candy to share with his friends. He gave them 2 4/5 ounces of candy when they came over to play video
1. 50 answers
2. asked by Bell
3. 8,091 views
a 4.369g sample of metal is placed in a flask. water is added to the flask and the total volume in the flask is read to be
1. 9 answers
2. asked by Lala
3. 6,489 views
Write and solve an equation for the situation. Eight and one-half years ago, Steven was 7 years old. How old is he now? Explain.
1. 27 answers
2. asked by Bell
3. 6,349 views
1.Write the fraction eight-ninths as a percent. Round to the nearest hundredth of a percent where necessary. (1 point) 88.89%
1. 54 answers
2. asked by Delilah
3. 5,214 views
How many grams of nickel metal are plated out when a constant current of 15.0 A is passed through aqueous NICl2 for 60.0
1. 1 answer
2. asked by Ashley
3. 5,212 views
During surgery, a person receives 4.60 pints of plasma. How many milliliters of plasma were given? (1 quart = 2 pints)
1. 2 answers
2. asked by mhernandez369
3. 4,956 views
Lee Holmes deposited $ 15,000 in a new savings account at 9% interest compounded semiannually, At the beginning of year 4, Lee
1. 1 answer
2. asked by Jean
3. 4,869 views
Water flows at 0.25L/s through a 9.0-m-long garden hose 2.0cm in diameter that is lying flat on the ground.The temperature of
1. 2 answers
2. asked by Cassie
3. 4,857 views
The latent heat of vaporization of H2O at body temperature (37°C) is 2.42 x 106 J/kg. To cool the body of a 77.6-kg jogger
1. 1 answer
2. asked by StressedStudent
3. 4,483 views
Two pipes of equal length are each open at one end. Each has a fundamental frequency of 715 Hz at 300 K. In one pipe the air
1. 1 answer
2. asked by Tia
3. 4,400 views
Which of the following substances will give an aqueous solution of pH closes to 7 and why?KNO3 NaHCO3 NH4I NH3 NaF Looking
1. 2 answers
2. asked by ciaociao
3. 4,183 views
Solve the equation using mental math. 6 6/7 = n + 5 3/7 = ?
1. 31 answers
2. asked by Bell
3. 4,096 views
A phone cord is 3.26 m long. The cord hasa mass of 0.224 kg. A transverse wave pulse is produced by plucking one end of the taut
1. 2 answers
2. asked by Cold Turkey
3. 3,936 views
It is well known that bullets and other missiles fired at Superman simply bounce off his chest. Suppose that a gangster sprays
1. 1 answer
2. asked by Evan
3. 3,676 views
In an old house, the heating system uses radiators, which are hollow metal devices through which hot water or steam circulates.
1. 1 answer
2. asked by StressedStudent
3. 3,624 views
Draw the molecule by placing atoms on the grid and connecting them with bonds. Do not identify the charge on each of these
1. 1 answer
2. asked by Amy
3. 3,615 views
How do I determine the mass (in g) of a sucrose solution that contains 12g of sucrose and is 4.1% sucrose by mass?
1. 1 answer
2. asked by What?
3. 3,485 views
How will overshooting the end point of an acid-base titration by adding too much base to KHP affect the calculated molarity of
1. 3 answers
2. asked by T
3. 3,185 views
15.In Store A, a book that regularly sells for $24.99 is on sale at 15% off. In Store B, the same book regularly sells for
1. 3 answers
2. asked by Delilah
3. 3,156 views
Use the data below from an electron impact mass spectrum of a pure compound to deduce its structure.Mass Spectrum M/z Relative
1. 2 answers
2. asked by Anonymous
3. 3,110 views
Dry ice is frozen carbon dioxide. If you have 1.4kg of dry ice, what volume will it occupy if you heat it enough to turn it into
1. 3 answers
2. asked by Anonymous
3. 3,034 views
A 64.4-kg skateboarder starts out with a speed of 2.11 m/s. He does 81.6 J of work on himself by pushing with his feet against
1. 1 answer
2. asked by P
3. 2,998 views
Suppose that you are given a 100 gram sample of a radioactive substance with a half-life of 32 days. How many grams will be left
1. 2 answers
2. asked by Molly
3. 2,976 views
11.The sales tax rate is 6.9%. a. Find the tax paid for a pair of boots with a list price of $128. b. What is the total cost of
1. 4 answers
2. asked by Delilah
3. 2,699 views
Who forced Napoleon Bonaparte to abandon plans for an American empire? (1 point)Toussaint-Louverture Zebulon Pike Aaron Burr
1. 14 answers
2. asked by Anonymous
3. 2,636 views
Why do you think the Muslims were not able to conquer most of that continent??
1. 17 answers
2. asked by Rachel
3. 2,578 views
How do I calculate the freezing point of 11.3g FeCl3 in 155g water? I know how to calculate i and m but how do you find Kf?
1. 1 answer
2. asked by Farah Massardi
3. 2,547 views
Write and solve an equation for the situation. Eight and one-half years ago, Steven was 7 years old. How old is he now?
1. 15 answers
2. asked by Bell
3. 2,520 views
a mouse pushes a piece of cheese with a mass of 6.4 g for a distance of 75 cm over the frictionless surface of an air hockey
1. 2 answers
2. asked by Kelly
3. 2,303 views
How might the location of the Arabian peninsula have contributed to the rapid spread of Islam??
1. 8 answers
2. asked by Rachel
3. 2,154 views
The concentration of hydroxide ions in the antacid, milk of magnesia, is 5.2x10^-4 M. Calculate the concentration of hydronium
1. 2 answers
2. asked by Jeanne
3. 2,137 views
what is the most soluble salt of the following set?a) AgCN with Ksp=6.0 x 10^-17 b) Al(OH)3 with Ksp = 1.9x10^-33 c) Fe(OH)3
1. 1 answer
2. asked by ashley
3. 2,121 views
How do I solve the following:500ml .4M aluminum nitrate solution contains ______moles of aluminum ions and _______moles of
1. 1 answer
2. asked by Abram
3. 2,051 views
Lee Willis loaned Audrey Chin $16000 to open Snip Its Hair Salon. After 6 years, Audrey will repay Lee with 8% interest
1. 2 answers
2. asked by Jean
3. 2,034 views
Fats help maintain your cell membranes. (1 point)True False 12. Your body does not use energy when you sleep. (1 point) True
1. 1 answer
2. asked by Jess
3. 1,981 views
Two numbers total 43 and have a difference of 21. Find the two numbers
1. 1 answer
2. asked by Cody
3. 1,913 views
Which example describes a method of relative dating?A. using fossils to determine the oldest rock layer in a canyon B. using
1. 3 answers
2. asked by dominique
3. 1,843 views
a buffer prepared by mixing equal moles of an acid having Ka=4.5x10^-4 and a salt of its conjugate base has a pH of what?
1. 1 answer
2. asked by sarah
3. 1,840 views
An airplane flies due north at 200 km/h relative to the air. There is a wind blowing at 70 km/h to the northeast relative to the
1. 2 answers
2. asked by BILLY
3. 1,838 views
A high diver of mass 68.2 kg jumps off a board 10.4 m above the water.The acceleration of gravity is 9.8 m/s2 . If his downward
1. 1 answer
2. asked by Khan
3. 1,821 views
for the reaction 3C2H2=> C6H6 at 25 C, the standard enthalpy change is -631 KJ and the standard entropy change is -430 J/K.
1. 1 answer
2. asked by ashley
3. 1,812 views
Mrs. Black has one begonia plant. If she buys two begonia plants each year for every one she has, how many will she have in four
1. 6 answers
2. asked by Anonymous
3. 1,789 views
Particle 1 and particle 2 have masses of m1 = 1.5×10-8 kg and m2 = 6.2×10-8 kg, but they carry the same charge q. The two
1. 1 answer
2. asked by Anonymous
3. 1,770 views
I need help with the third partThe chemical method of analysis in determination of the blood alcohol content (%BAC) is: K2Cr2O7
1. 1 answer
2. asked by Terry
3. 1,723 views
the two half-reactions that are used in the direct methanol fuel cell are shown below.I. 2
1. 1 answer
2. asked by concerned chem student
3. 1,698 views
As the drawing shows, two thin strips of metal are bolted together at one end and have the same temperature. One is steel, and
1. 1 answer
2. asked by StressedStudent
3. 1,608 views
NaOH + HCl -> NaCl + H2OWhat is the molarity of a NaOH solution that required 31.6mL to neutralize 25.0mL of a 0.145 M HCl
1. 1 answer
2. asked by Jo
3. 1,552 views
The index of refraction of a certain type of glass is 1.58 what is the speed of light in the glass ?
1. 1 answer
2. asked by amy
3. 1,552 views
Jose wants to put fencing around his rectangular garden. His garden measures 31 feet by 33 feet. The garden has a path around it
1. 2 answers
2. asked by Topsy Kretts
3. 1,546 views
Jess is running around a circular track, one lap every 40 seconds. Mackenzie is also running at a constant speed around the same
1. 1 answer
2. asked by Jane
3. 1,545 views
if a number is subtracted from the numerator of 3/5 and the same number is added to the denomminator of 3/5, the result is
1. 1 answer
2. asked by Brittney
3. 1,542 views
2. The speed of light in a certain plastic is 1.88*10^8 m/s. what is the index of refraction of plastic?
1. 1 answer
2. asked by alessandra
3. 1,505 views
find the distance d (P_1 & P_2) between points P_1 and P_1.P_1=(-3,3) P_2=(1,5) Find the midpoint of the line segment joining
1. 1 answer
2. asked by spazed out
3. 1,503 views
Which customary unit is most reasonable to measure the capacity of a swimming pool?
1. 2 answers
2. asked by Aaliyah
3. 1,487 views
What powers of two prime numbers will give a product of 1000...000(this sign --> { below the 1000...000 and below this { telling
1. 1 answer
2. asked by Aliza
3. 1,476 views
the pH of a solution of HIO3 (Ka=1.7x10^-1) and KIO3 is 1.00. what is the molarity of KIO3 if the molarity of HIO3 is 0.025 M?
1. 1 answer
2. asked by sarah
3. 1,472 views
EF = 3x-16, FG = 2x-7, and EG = 17, find the values of x, EF, and FG
1. 2 answers
2. asked by Amanda
3. 1,464 views
copper (II) flourine comtains 37.42 % of mass. use this percentage to calculate the mass of flourine in grams contained in 28.5
1. 1 answer
2. asked by Justin
3. 1,414 views
How can I compare the terms rotation and revolution by creating a Venn diagram? How does the diagram look like?
1. 3 answers
2. asked by Louise
3. 1,410 views
The radius of Earth is 6,371 kilometers. A space shuttle orbits 315 kilometers above the surface of Earth. The space shuttle
1. 1 answer
2. asked by Chris
3. 1,398 views
John Roe, an employee of the Gap, loans $3000 to another employee at the store. He will be repaid at the end of 4 years with
1. 1 answer
2. asked by Jean
3. 1,383 views
number sense Edie wanted to subtract 273-188.she began by finding 2-1.what did edie do wrong?
1. 5 answers
2. asked by Latha
3. 1,381 views
At a museum child admission was $5.50 and adult admission is $9 on Monday twice as many adult tickets as child tickets were sold
1. 2 answers
2. asked by K.E.cutie
3. 1,360 views
The kindergarten has a box of blocks.Some blocks are red,some yellow and some are blue.1/2 of the blocks are red,1/4 of the
1. 2 answers
2. asked by Alex
3. 1,356 views
A car rental company charges $24 per day plus $0.75 per mile driven.a) Let C = total cost; D = number of days and M = number of
1. 2 answers
2. asked by Randy
3. 1,322 views
Multiple Choice1. Write the following ratio in simplest form: 32 min : 36 min (1 point) 8 : 9 8 : 36 32 : 9 128 : 144 2. In a
1. 12 answers
2. asked by Sammy, !!!Please Answer!!
3. 1,308 views
Name the following compounds1. CH3-CH=CH-CH2 l Cl 2. CH3-CH-C=(tripple bond)C-CH3 l CH3 3. Cl Cl l l CH = C-CH3 4. Complete the
1. 1 answer
2. asked by Leo
3. 1,294 views
Consider the following test scores obtained by a class.Test score 90 80 70 60 50 Frequency 1 4 11 6 2 Find the standard
1. 1 answer
2. asked by Debin
3. 1,290 views
How did the location of the Arabian Peninsula help the Muslims conquer territory beyond the Arabian Peninsula?
1. 9 answers
2. asked by Mary kate
3. 1,288 views
What type of poem is this ?We found his flag one bitter morning And knew our hopes had come to woe. We had come pursuing glory
1. 1 answer
2. asked by Chloe
3. 1,285 views
How did the location of the Arabian Peninsula help the Muslims conquer territory beyond the Arabian Peninsula?
1. 3 answers
2. asked by Olivia: Help me Ms. Sue
3. 1,266 views
what is the pH of the solution formed when 25 mL of 0.173 M NaOH is added to 35 mL of 0.342 M HCl?
1. 1 answer
2. asked by sarah
3. 1,254 views
A solution is made by dissolving 18.9 g of HCl in enough water to make 716 mL of solution. Calculate the pH of the solution at
1. 1 answer
2. asked by Kristen
3. 1,250 views
For nine months of the year farmers tended their crops. What fraction of a year did they farm? Reduce the fraction to its lowest
1. 4 answers
2. asked by Aaliyah
3. 1,241 views
Diethylamine (C2H5)2NH, is a weak base that ionizes in water,a 0.600 M solution of (C2H5)2NH is 4.65% ionized at 25 degrees
1. 1 answer
2. asked by Chris
3. 1,232 views
An open-ended mercury manometer is used to measure the pressure exerted by a trapped gas as shown in the figure. Atmospheric
1. 0 answers
2. asked by Anonymous
3. 1,231 views
if you change the indicator of standardization Hcl with Na2co3 methyl red methyl orange titration corset not why?
1. 0 answers
2. asked by yasser
3. 1,224 views
The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p
1. 1 answer
2. asked by Britney
3. 1,221 views
1. Water at a pressure of 3.00 x 10 5th Pa flows through a horizontal pipe at a speed of 1.00 m/s. The pipe narrows to
1. 0 answers
2. asked by Anonymous
3. 1,220 views
Find the difference. 7 1/2 - 6 3/10 = ?
1. 1 answer
2. asked by Bell
3. 1,219 views
A 13 kg box is at rest on a level floor. The coefficient of static friction µS = 0.9 and the coefficient of kinetic friction
1. 0 answers
2. asked by Sophia
3. 1,214 views
Find the sum. 5 9/13 + 5 9/13 = ?
1. 3 answers
2. asked by Bell
3. 1,198 views
a buffer prepared by mixing equal moles of an acid having Ka=4.5x10^-4 and a salt of its conjugate base has a pH of what?
1. 2 answers
2. asked by sarah
3. 1,197 views
3. a beam of light enters water from air.(a) if its angle of incidence is 70,what is the angle of refraction ?(b) at what angle
1. 0 answers
2. asked by alessandra
3. 1,184 views
I was given 21 questions for homework and I can't get the last few no matter how hard and how many times I try.17. Sinx-1/sinx+1
1. 5 answers
2. asked by Kim
3. 1,173 views
4. A beam of light in water enters a plastic block (index of refraction=1.40(a) if the angle of incidence is 40, what is the
1. 0 answers
2. asked by alessandra
3. 1,161 views
for a man of mass 75kg and height 185 cm claculate the following using standard anthropometric data.1. length of his upper arm
1. 0 answers
2. asked by dmkp
3. 1,160 views
Use n = 6 subdivisions and left endpoints to estimate the area under the graph off(x) = 2x + 1 between x = 0 and x = 3.
1. 0 answers
2. asked by Rudy
3. 1,157 views
three bugs that are connected by a mass less spider silk are pulled along a frictionless table top. The first bug has a mass of
1. 3 answers
2. asked by Kelly
3. 1,157 views
how many 2 digit numbers can be written so that the second digit is greater than the digit before it ?
1. 1 answer
2. asked by lindy
3. 1,144 views
Find the sum. 3 3/15 + 4 2/5 = ?
1. 3 answers
2. asked by Bell
3. 1,135 views
What is 6y/7x^2 in terms of the LCD
1. 1 answer
2. asked by Eden
3. 1,115 views
Pool length (m) 9Depth of pool (m) 1.6 Pool length (ft) 29 Is it correct to write that 9m (metric system) is 29 feet
1. 1 answer
2. asked by randa
3. 1,107 views
1. Paul collects baseball cards. He has 10 outfielders, 7 pitchers, 3 managers, and 5 infielders. If he grabs a card at random,
1. 0 answers
2. asked by JJ.
3. 1,106 views
Solve equations below:45-z+89=
1. 1 answer
2. asked by McKayla
3. 1,105 views
Ms Sue , Is the answer to this equation : The same number of cookies,C, in each of three tins makes a total of 36 cookies. Is
1. 3 answers
2. asked by stephanie
3. 1,104 views
Read the sentenced Add commas when they are needed.I don't know how to skate but I can learn. Comma after skate Mom and Dad
1. 1 answer
2. asked by Jerald
3. 1,100 views
Approximate the followin. 1.2.7272to 2d.p
1. 1 answer
2. asked by Muhammad
3. 1,090 views

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