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Questions Asked on February 28, 2010

A student placed 19.0g of glucose (c6h12o6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then
1. 1 answer
2. asked by Heather
3. 8,165 views
Write and balance equations for the following reactions.A)Iron metal and Chlorine gas react to form solid iron(III) chloride.
1. 3 answers
2. asked by Jack
3. 7,451 views
If is a line whose equation is y = 2x- 1, find the equation of the image of under each of the following translations:(x, y) S (x
1. 1 answer
2. asked by Rebecca
3. 5,830 views
Three blocks of masses 1.0, 2.0, and 4.0 kilograms are connected by massless strings, one of which passes over a frictionless
1. 4 answers
2. asked by Kate
3. 4,730 views
If the initial concentration of is 0.250 , and the reaction mixture initially contains no products, what are the concentrations
1. 7 answers
2. asked by Anonymous
3. 4,127 views
Write Skeleton equations for these reactions.A) Heating Copper(II) sulfide in the Presence of diatomic oxygen produces pure
1. 2 answers
2. asked by Jack
3. 3,850 views
How long will it take for 25% of the C-14 atoms in a sample of C-14 to decay? The half-life for the radioactive decay of C-14 is
1. 3 answers
2. asked by Anonymous
3. 3,773 views
Suppose an investment of $500 doubles in value every 15 years. How much is the investment worth after 30 years? After 45 years?p
1. 2 answers
2. asked by Kate
3. 3,701 views
The chemical reaction of 100 g of salicylic acid, C7H6O3, with excess aceticanhydride produces 50.0 g of aspirin, C9H8O4,
1. 3 answers
2. asked by Marian
3. 3,086 views
1) What phase are daughter cells in as a result of mitosis?answer: Anaphase 2)During what phase of mitosis do centromeres divide
1. 2 answers
2. asked by marie
3. 2,787 views
1.Use the Vsepr theory to predict and explain the shape and bond angle of each of the molecules SCI2 and C2CL2.2.Deduce whether
1. 3 answers
2. asked by Richard
3. 2,670 views
A 2.500 gram sample of hydrate of calcium sulfate loses 0.532 grams of water when heated. Determine the mass percent of water in
1. 2 answers
2. asked by lauren
3. 2,478 views
The question is...find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. Then
1. 1 answer
2. asked by Megan
3. 2,074 views
A charge of 1.5uC is placed at the origin, and a charge of 3uC is placed at x = 1.5m. Locate the point between the two charges
1. 1 answer
2. asked by morgan
3. 1,876 views
CS2(g) + O2(g) CO2(g) + SO2(g)(a) Consider the unbalanced equation above. What is the maximum mass of SO2 that can be produced
1. 2 answers
2. asked by Tiffany
3. 1,803 views
What is the exact value of cot(4pi/3)?Do not use a calculator.
1. 1 answer
2. asked by Lori
3. 1,767 views
A spring-loaded toy gun is used to shoot a ball of mass m= 1.50 kg straight up in the air. The spring has spring constant k =
1. 1 answer
2. asked by Anonymous
3. 1,594 views
The limit represents the derivative of some function f at some number a. Select an appropriate f(t) and a.lim_(t->1)(t^3+t-2)/(t
1. 1 answer
2. asked by isha
3. 1,494 views
1) What phase are daughter cells in as a result of mitosis?answer: Anaphase 2)During what phase of mitosis do centromeres divide
1. 1 answer
2. asked by Marie
3. 1,385 views
How many moles of oxygen will occupy a volume of 2.5 liters at 1.2 atm and 25 degrees celcius
1. 2 answers
2. asked by Cecilia
3. 1,347 views
Communication skills happen to be one of the most important skills required in business. Because with this skills, I can explain
1. 2 answers
2. asked by Thara!
3. 1,329 views
I have to find five poetic devices in this poem. Can you please help me?Weekend Glory Some clichty folks don't know the facts,
1. 2 answers
2. asked by Gaveen
3. 1,290 views
This limit represents the derivative of some function f at some number a. Select an appropriate f and a.lim_(h->0)
1. 0 answers
2. asked by Naina
3. 1,289 views
An electric train moves in a northerly direction at 100 km an hour. The wind blow in an easterly direction at 50 km per hour. In
1. 2 answers
2. asked by Mulalo
3. 1,286 views
The reaction A + B to C + D is second order in A and zero order in B. The value of k is 1.10×10−2 M^{-1}\;min^{-1}.What is
1. 2 answers
2. asked by joe
3. 1,251 views
A 1300 kg car rolling on a horizontal surface has speed v = 65 km/h when it strikes a horizontal coiled spring and is brought to
1. 1 answer
2. asked by Anonymous
3. 1,251 views
Around what tectonic plate are most of the worlds volcanoes located.The Pacific plate. Is this correct?
1. 1 answer
2. asked by Janet
3. 1,250 views
Solve the system of linear equations by elimination. Thank You for your help.8x+10y=3 3x-5y=2
1. 2 answers
2. asked by Katie
3. 1,243 views
A 275 kg load is lifted 24.0 m vertically with an acceleration a=0.120 g by a single cable. Determine the tension in the cable.
1. 1 answer
2. asked by Anonymous
3. 1,238 views
Having trouble with this one: A capacitor having a capacitance of 10uF is charged by 100v battery. A.)Calculate the charge on
1. 1 answer
2. asked by morgan
3. 1,230 views
You will take one side of the Canadian Confederation argument (For or Against) and you will present it.What you need to do:
1. 0 answers
2. asked by John
3. 1,177 views
A bag contains 3 red chips, 2 blue chips, and 1 white chip. If 2 chips are chosen from the bag (without replaceent), determine
1. 4 answers
2. asked by Ryan!
3. 1,177 views
1) Verify the identitycos^2 B - sin^2 B = 2 cos^2 B -1 I know that cos^2 B - sin^2 B = 2 cos^2 B -1 by the double angle formula
1. 1 answer
2. asked by Hannah
3. 1,163 views
1) What phase are daughter cells in as a result of mitosis?answer: Anaphase 2)During what phase of mitosis do centromeres divide
1. 0 answers
2. asked by marie
3. 1,128 views
Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water.
1. 1 answer
2. asked by mandy
3. 1,124 views
writex^2-11/5 log(2 x-1)+11/5 log(x-2)+ c as a single log im not sure how to change the brackets
1. 0 answers
2. asked by josh
3. 1,103 views
please could someone tell whether the film miss congeniality was a book. If not can you think of a film that was a book, which
1. 0 answers
2. asked by tarra
3. 1,093 views
This Question is in multiple sections.f(x)= -2x^2+2x+10 is the problem 1)What is the x coordinate of vertex in simplified
1. 2 answers
2. asked by LeAnn/Emergency Help Please
3. 1,062 views
A toaster uses a Nichrome heating wire. When the toaster is turned on at 20°C, the initial current is 1.50 A. A few seconds
1. 3 answers
2. asked by Anonymous
3. 1,056 views
an athlete has a large lung capacity of 7.0L. Assuming to be an ideal gas how many molecules of air are in the athletes lungs
1. 2 answers
2. asked by Standard C.
3. 1,048 views
Explain the similarities and differences of the multicellular stages of acellular and cellular slime molds.?
1. 1 answer
2. asked by Andrew
3. 1,045 views
Give the equation of a line perpendicular to the line y = -8x + 8 having the y-intercept 2 units below the y-intercept of the
1. 1 answer
2. asked by Jillian
3. 1,041 views
How do you indicate congruent angles in a diagram?
1. 3 answers
2. asked by Anonymous
3. 1,021 views
find derivative of (8sqrt(x)+(9/2root3(x)))^2
1. 7 answers
2. asked by isha
3. 984 views
1-What phase are daughter cells in as a result of mitosis?-Anaphase 2- During what phase of mitosis do centromeres divide and
1. 0 answers
2. asked by marie
3. 978 views
please could someone help me answer these questions ...?globalisation brings many problems describe all the benefits in all the
1. 2 answers
2. asked by VIKKI
3. 960 views
Solve the following equation:k2 + 4k = 0 By factoring and By using the quadratic formula Can someone please help me to
1. 1 answer
2. asked by lena
3. 928 views
How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake?I know that a tenfold increase in
1. 0 answers
2. asked by Janet
3. 921 views
How long will it take a 230 W motor to lift a 335 kg piano to a sixth-story window 19.0 m above?
1. 1 answer
2. asked by peyli
3. 916 views
Thank you very much for your last corrections!Can you check the grammar in the following sentences, please? 1) Antony uses his
1. 1 answer
2. asked by Franco
3. 885 views
A 275 kg load is lifted 24.0 m vertically with an acceleration a=0.120 g by a single cable. Determine the tension in the cable.
1. 1 answer
2. asked by Anonymous
3. 856 views
Cholesterol levels of adult males are approximately normally distributed with a mean of mg/dL and a listed standard deviation of
1. 0 answers
2. asked by anaya
3. 855 views
Sorry i posted this as an answer after my question had been answered, this is continued from the qualitative analysis question:T
1. 2 answers
2. asked by Joe
3. 853 views
What is the maximum mass of product that can be formed when 76.0 g of solid zinc and 17.5 g nitrogen gas react?
1. 4 answers
2. asked by Tiffany
3. 840 views
A toy car with a mass of 120 g moves to the right with a speed of 0.56 m/s. A small child drops a 25.0-g piece of clay onto the
1. 1 answer
2. asked by Angie
3. 831 views
Tom is a habitual shopper at garage sales. Last Saturday he stopped at one where there were several types of used building
1. 0 answers
2. asked by Anusha
3. 797 views
A right rectangle and a right triangle prism have the same height. If the lenght of the side of the rectangle base is twice the
1. 5 answers
2. asked by Donna
3. 796 views
Carmen can type 18 words in 27 seconds. How many words can she type in 60 seconds?
1. 1 answer
2. asked by Callie
3. 791 views
what is autism? autism is a developmental disablity that affects a person's way of communicating with others, their social
1. 3 answers
2. asked by Anonymous
3. 779 views
on a warm day(92 degrees F) an air filled balloon occupies a volume of .20m^3 and is under a pressure of 20.0 lbs/in^2. if the
1. 2 answers
2. asked by Standard C.
3. 763 views
How much work must be done to stop a 1200 kg car traveling at 135 km/h?
1. 1 answer
2. asked by Anonymous
3. 761 views
Solve identity,(1-sin2x)/cos2x = cos2x/(1+sin2x) I tried starting from the right side, RS: =(cos²x-sin²x)/(1+2sinxcosx)
1. 3 answers
2. asked by sh
3. 748 views
A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the
1. 1 answer
2. asked by Dacia
3. 743 views
Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water.
1. 1 answer
2. asked by mandy
3. 741 views
I really need help with this but I'm not sure if I'm going to put it in the correct form.The problem says to multiply and
1. 1 answer
2. asked by LeAnn/Emergency
3. 740 views
can u give me lists of skills required in busnisses! i got communication skills, teamwork skills, and i happen to need atleast 3
1. 1 answer
2. asked by Thara!
3. 737 views
I have homework and i don't understand what to do help please.Plan for a job search by considering how you would manage the
1. 1 answer
2. asked by mary
3. 732 views
HI, we conducted a qualitative analysis, to identify the cations in an unknown sollution..trying to determine whether it had Al
1. 2 answers
2. asked by Joe
3. 730 views
1) What phase are daughter cells in as a result of mitosis?answer: Anaphase 2)During what phase of mitosis do centromeres divide
1. 1 answer
2. asked by marie
3. 729 views
Silver(I) nitrate and sodium sulfate react to form silver(I) sulfate and sodium nitrate.Suppose 43.5 mL of 0.040 M silver(I)
1. 2 answers
2. asked by Tiffany
3. 728 views
Can someone please help me with this?Find all solutions to the equation in the interval [0,2pi) cos2x=sinx I know I have to use
1. 3 answers
2. asked by mary
3. 726 views
For the reaction A to products}, the following data were obtained: t=0 s, A}]=0.715 M; 22 s, 0.605 M; 74 s, 0.345 M; 132 s,
1. 2 answers
2. asked by joe
3. 726 views
simplify by removing factors of 14w-24/6-w
1. 1 answer
2. asked by Terri
3. 715 views
verify the identitysin x(1 - 2 cos^2 x + cos^4 x) = sin^5 x 1-2cos^2 x looks like 2cos^2x-1 its just backwards. I am not sure
1. 1 answer
2. asked by Hannah
3. 710 views
1) Use the cofunction identites to evaluate the expression without the aid of a calculator.cos^2 18 degrees + cos^2 72 degrees.
1. 2 answers
2. asked by Abby
3. 708 views
What structure is produced when spindle fibers radiate from centrioles?Can you help please?
1. 0 answers
2. asked by Marie
3. 707 views
A flock of geese is flying while another goose is flying past it. The goose asks the leader of the flock how many they are. The
1. 3 answers
2. asked by Mulalo
3. 700 views
Does the shut down run rule apply to oligopolies in the same way as it does to perfectly competitive companies for both the
1. 3 answers
2. asked by Kiersyn
3. 687 views
an initially stationary block of mass m on a floor. A force of magnitude 0.540mg is then applied at upward angle of 16. What is
1. 2 answers
2. asked by beav
3. 684 views
1) What phase are daughter cells in as a result of mitosis?answer: Anaphase 2)During what phase of mitosis do centromeres divide
1. 1 answer
2. asked by marie
3. 683 views
I forgot to include the following statements.1) Use the simple past when reporting historical events and the simple present when
1. 1 answer
2. asked by Franco
3. 679 views
For the reaction A to products}, the following data were obtained: t=0 s, A}]=0.715 M; 22 s, 0.605 M; 74 s, 0.345 M; 132 s,
1. 0 answers
2. asked by joe
3. 677 views
The reaction A to products is first order in A.1.) If 2.00 g A is allowed to decompose for 42 min, the mass of A remaining
1. 1 answer
2. asked by joe
3. 668 views
the radii of three concentric circles shown are in the ratio 1:2:3. What is the probability that random shot that hits the
1. 1 answer
2. asked by Ryan!
3. 668 views
Need to draw electron dot diagram showing the covalent bondPCL3
1. 1 answer
2. asked by NAJI
3. 663 views
In the code of the Community Service Code why is theinstructuin is necessaary? what does it tell you about the relationship
1. 1 answer
2. asked by sally
3. 663 views
I have a paper started for my ethics class, but I am not sure if it fits the "criteria" or not. I am supposed to write about an
1. 2 answers
2. asked by stephanie
3. 660 views
I am writing a descritive essay about the Mcdonald's Big Mac. I am having trouble coming up with adjectives to describe how it
1. 1 answer
2. asked by carrie
3. 650 views
Thank you for your last corrections.Can you check the grammar in the following sentences, please? 1) A: "What would you like to
1. 1 answer
2. asked by Franco
3. 641 views
Thank you for answering my previous questions!I have another one now in regards to the following question... An unknown
1. 1 answer
2. asked by Sandra
3. 623 views
Consider two small circular current loops. Suppose one loop is placed above the other (but not touching), with their areas
1. 1 answer
2. asked by Sandhya
3. 622 views
How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake?I know that a tenfold increase in
1. 1 answer
2. asked by Janet
3. 620 views
How does the capacitance of a parallel plate capacitor change when its plates are moved to twice their initial distance and a
1. 1 answer
2. asked by Sandra
3. 617 views
Your posts have been removed.Once you write up <b>YOUR THOUGHTS</b>, please re-post, and someone here may be able to help.
1. 0 answers
2. asked by Writeacher
3. 616 views
1) verify the identitysec^2 (pi/2 - x) -1 = cot^2 x I think that we can replace sec with csc for the cofunction formulas since
1. 1 answer
2. asked by Hannah
3. 613 views
Cholesterol levels of adult males are approximately normally distributed with a mean of mg/dL and a listed standard deviation of
1. 1 answer
2. asked by anaya
3. 611 views
A 15.00 ml sample of a standard solution containing 1 g of CaCO3/L required 8.45 ml of EDTA to fully complex the Ca present.
1. 3 answers
2. asked by Anonymous
3. 610 views
Can someone please proofread my spanish project?Hi I'm a second year spanish student and we just learned about past and
1. 2 answers
2. asked by Courtney
3. 608 views
A 160 MeV proton, moving in the x-direction, enters a region in which there is a magnetic field. The proton experiences an
1. 1 answer
2. asked by Sandhya
3. 607 views
Cost Allocationprepare responses to the following questions in a Word document: • As financial managers, it is important that
1. 1 answer
2. asked by Lynnette
3. 606 views

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