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Questions Asked on March 28, 2011

the type of reaction in a voltaic cell is best described as1.spontaneous oxidation reaction only 2.nonspontaneous oxidation
1. 7 answers
2. asked by lisa
3. 4,880 views
at the end of every 3 months, Rita deposits $100 into an account that pays 5% compounded quarterly. After 5 yrs, she puts the
1. 2 answers
2. asked by ash
3. 3,982 views
Consider the reaction HCl + NaOH ->NaCl + H2OGiven: HCl Solution: 22 degrees celsius NaOH Solution: 22 degrees celsius Final
1. 2 answers
2. asked by Vanessa
3. 2,941 views
An open-topped cylindrical pot is to have volume 125 cm3. Determine the minimum possible amount of material used in making this
1. 1 answer
2. asked by Anonymous
3. 2,897 views
At a certain location, the solar power per unit area reaching the Earth's surface is 180 W/m2 averaged over a 24-hour day.
1. 1 answer
2. asked by sarah
3. 2,881 views
I'm trying to calculate the enthalpy of the reactionMg(s) + 2HCl(aq) -> MgCl2(aq) + H2 (g) however I cannot find the enthalpy of
1. 1 answer
2. asked by Kirstie
3. 2,371 views
An object traveling 200 feet per second slows to 50 feet per second in 5 seconds. Calculate the acceleration of the object.
1. 3 answers
2. asked by j
3. 2,220 views
Theresa has $26 in her wallet. The bills are worth either $5 or $1. If there are 14 bills total, how many does she have of each
1. 2 answers
2. asked by Anonymous
3. 2,085 views
i had to listen to an audio of these two poems and type them down. I did that part but I'm not sure of the accent marks of some
1. 1 answer
2. asked by anon
3. 2,048 views
-FRENCH 2-i am having a lot of trouble with l'imparfait et le passe compose-talking about actions in the past- and i need some
1. 8 answers
2. asked by kw
3. 1,844 views
if 3.5 mol TiCl4 reacts with 4.5 mol O2, which is the limiting reactant?
1. 1 answer
2. asked by Kathy
3. 1,750 views
what are the basic concepts of human interaction from a psychology perspective. In your examination, describe at least two
1. 3 answers
2. asked by jazz
3. 1,681 views
A population of 250 frogs increases at an annual rate of 22%.a. Write an exponential function to model the population of frogs.
1. 3 answers
2. asked by Algebra 2. Help, PLEASE!
3. 1,637 views
What are thedifferent methods of controlling fullness in a garment. Need pictures
1. 4 answers
2. asked by Sonia
3. 1,621 views
Over the course of The Screwtape Letters, the state of the patient's soul fluctuates as he experiences a conversion, doubt,
1. 2 answers
2. asked by Scott
3. 1,610 views
the polar-orbiting environmental satellites (POES) and some military satellites orbit at a much lower level in order to obtain
1. 2 answers
2. asked by victoria
3. 1,501 views
A spherical balloon is being inflated at a rate of 10 cubic inches per second. How fast is the radius of the balloon increasing
1. 1 answer
2. asked by Anonymous
3. 1,498 views
why must not the condensed water drip into the flask?
1. 2 answers
2. asked by felaa
3. 1,484 views
What tool do i use to find the measurement of the classroom floor.
1. 7 answers
2. asked by Keisha
3. 1,464 views
my mom went to the grocery store. she forgot her purse...a)comma B)and c)or d)but e)because
1. 4 answers
2. asked by vincent
3. 1,433 views
A ball is thrown upward with an initial velocity of 96 feet per second from the top of a 100 foot building. (a) When well the
1. 2 answers
2. asked by Anonymous
3. 1,360 views
What are the net ionic equations for: 1. Potassium Fluoride and Ammonium Chloride and 2. Sodium Hydrogen Sulfite and Potassium
1. 0 answers
2. asked by Ann
3. 1,354 views
Of the 400 doctors who attended a conference, 240 practiced family medicine and 130 were from countries outside the United
1. 0 answers
2. asked by Freakafreak out, please help
3. 1,354 views
The participants in a weight-loss class lost the following weights (in pounds) after three weeks of dieting:3,6,0,3,0,0Assuming
1. 0 answers
2. asked by roy
3. 1,297 views
Ben rolls a standard number cube (sides labeled with numbers 1 through 6). Find the probability that Ben rolls a number greater
1. 1 answer
2. asked by please help...thank you
3. 1,291 views
The frequency of a radio wave is inversely proportional to the wavelength. If a wave 250 m long has a frequency of about 1200
1. 1 answer
2. asked by Lauren
3. 1,271 views
A 0.1276 g sample of a monoprotic acid (molar mass = 1.10 x 10^2) was dissolved in 25.0 ml of water and titrated with 0.0633 M
1. 2 answers
2. asked by Angelina
3. 1,259 views
lab question: explain why different masses of precipitate were obtained for test tube IV and V?
1. 6 answers
2. asked by ekauwen
3. 1,255 views
You are the technical consultant for an action-adventure film in which a stunt calls for the hero to drop off a 18-m-tall
1. 0 answers
2. asked by laila
3. 1,252 views
The total energy of a 2.00 kg falling rock is 5000 J. If its potentialenergy is 1975 J, the kinetic energy of the rock is ____
1. 0 answers
2. asked by courtney
3. 1,181 views
Formulate a system of equations for the situation below and solve.A theater has a seating capacity of 660 and charges $2 for
1. 1 answer
2. asked by Leah
3. 1,158 views
a solution is made by combining 5 mL of .2M HC2H3O2, 5 mL of .2M NaC2H3O2, and 10 ml of water. calculate the molarity of HC2H3O2
1. 1 answer
2. asked by Anonymous
3. 1,155 views
The number 1 is a perfect square and a perfict cube. What is the next smallest whole number which is a perfect square and a
1. 0 answers
2. asked by johnny
3. 1,144 views
Please Help!!The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean
1. 0 answers
2. asked by luce
3. 1,137 views
What is the degree of the 3rd angle if the other two are 68 degrees?
1. 1 answer
2. asked by j
3. 1,135 views
In the classroom, we reactedMg(s) + 2HCl -> MgCl2(aq) + H2 (g) (0.31 g of Mg(s), and 99.46 g of HCl) Initial temp. = 22.5
1. 1 answer
2. asked by Kara
3. 1,135 views
Rachel cannot remember how much money she had when she came to school this morning. She used half of the money for lunch and
1. 1 answer
2. asked by johnny
3. 1,099 views
A hunk of cast concrete with a weight of 10 N will float if it displaces 10N of water.
1. 1 answer
2. asked by aaron
3. 1,091 views
In a circle of radius 12 inches, a sector is formed by a central angle of pie/4 radians. Find the area of the sector to the
1. 1 answer
2. asked by Lisa
3. 1,090 views
can someone help explain how to do this?allen has nickels dimes and quarters in his pocket. the number of nickels is 1 more than
1. 1 answer
2. asked by Robbie
3. 1,089 views
A spring has a spring constant, k, of 441 N/m. How much must this spring be stretched to store 22 J of potential energy?
1. 1 answer
2. asked by Maria
3. 1,083 views
Sketch the graph of a function f that satisfies all the following conditions.(a) f(0)=0,f'=1 (b) f''(x)>0 for x<0, f''<0 for x>0
1. 0 answers
2. asked by Tina
3. 1,080 views
Consider the titration of 88.0 mL of 0.150 M Ba(OH)2 by 0.600 M HCl. Calculate the pH of the resulting solution after the
1. 1 answer
2. asked by Sarah
3. 1,075 views
The length of a rectangular garden is two feet less than five times the width. If the perimeter is 72 feet, what is the length
1. 1 answer
2. asked by Anonymous
3. 1,070 views
47) When segmenting broad product-markets, cost considerations tendA. To lead to more aggregating. B. To lead to a large number
1. 1 answer
2. asked by Anonymous
3. 1,037 views
Can you please check if everything is all right in these sentences I wrote on the second world war.Thank you. 1) On the 1st of
1. 1 answer
2. asked by Mike
3. 1,021 views
A particle with a mass of 2.0×10−5 kg and a charge of +2.0 microC is released in a (parallel plate) uniform horizontal
1. 0 answers
2. asked by Ben
3. 1,017 views
Select one of the following subordinate groups from Ch. 1 of the text, or, because the chapter does not list all subordinate
1. 20 answers
2. asked by latisha
3. 1,013 views
A hydrocarbon is burnt completely in air to form 13.2g of carbon dioxide gas and 7.2g of water. What is the molecular formula of
1. 2 answers
2. asked by Esh
3. 1,008 views
The peoms are written that way I'm just not sure of the accent marks of some words. If you can help me,that would be great and
1. 0 answers
2. asked by anon
3. 1,006 views
a. write the complete hydrolysis equation of NaC2H3O2b. identify the spectator ions c. identify conjugate acid base pairs
1. 1 answer
2. asked by Anonymous
3. 998 views
Explain- how would the gravitational force between Earth and the Moon change if the distance between them increased?
1. 1 answer
2. asked by Karina
3. 986 views
An object initially at a temperature of 80 C cools by 1 C in a time of 15 s when placed in a 20 C roomWhen the object's
1. 0 answers
2. asked by dan
3. 978 views
When light having a wavelength of 497 nm strikes a metal coating of an emitter, an elector with kinetic energy of 2.52 x 10^-19
1. 1 answer
2. asked by Kamila
3. 977 views
IMPORTANCE OF ELECTRICITY TO THE DEVELOPMENT OF HOME ECONOMIS
1. 2 answers
2. asked by YAKS
3. 970 views
Why are ecosystems important to the survival of humans?
1. 1 answer
2. asked by Anonymous
3. 969 views
1 – Tanzimat ile Meşrutiyet yönetimlerinin Osmanlı İmparatorluğu’nda meydana getirdikleri temel değişiklikleri
1. 2 answers
2. asked by brk
3. 968 views
A 300 g bird flying along at 6.2 m/s sees a 10 g insect heading straight toward it with a speed of 27 m/s (as measured by an
1. 0 answers
2. asked by Sharon
3. 954 views
how do i solve2q/(2q+3)-2q/(2q-3)=1
1. 0 answers
2. asked by Marylyn
3. 950 views
If you have 200.0 mL of a 30.0% aqueous solution of isopropyl alcohol, what volume of water is in the solution?
1. 1 answer
2. asked by leilah
3. 926 views
There are 7 green cas. Predict the number of of green cars you would expect to see if there were 125 cars in the parking lot.
1. 2 answers
2. asked by DeeBie
3. 922 views
what contents in magma affects a volcanos explosive?
1. 1 answer
2. asked by jess
3. 913 views
a rectangle and an equilateral triangle have the same perimeter the length of the rectangle is 4 times its width the length of
1. 1 answer
2. asked by tamara
3. 901 views
The load across a 12 V battery consists ofa series combination of three resistors 21 ohm, 22 ohm, and 56 ohm. What is the total
1. 1 answer
2. asked by maria
3. 898 views
Balanced equation: 2HCL+CaCO2>CaCl2+CO2+H2Owhat volume of 6.00 M HCL is needed to completely react with .750 moles of CaCO3
1. 0 answers
2. asked by patti
3. 893 views
Sodium vapor lamps, used for public lighting, emit yellow light of wavelength 589 nm. How much energy is emitted by 5.00 mg of
1. 0 answers
2. asked by Kamila
3. 883 views
There are 25 red, blue, yellow andgreen marbles in a bag. Four of the marbles are blue and the probability of selecting a blue
1. 1 answer
2. asked by maymay
3. 882 views
Find the length of the intercepted arc with radius 2.5 cm and a central angle of 95 degrees
1. 1 answer
2. asked by Bree
3. 874 views
A sample of 12 observations is selected from a normal population for which the population standard deviation is known to be 4.
1. 0 answers
2. asked by liam
3. 872 views
A gas expands from 282 mL to 971 mL at constant temperature.Calculate the work done (in joules) by the gas if it expands against
1. 0 answers
2. asked by Kiana
3. 865 views
A steel ball of mass 0.300 kg is fastened to a cord that is 70.0 cm long and fixed at the far end. The ball is then released
1. 3 answers
2. asked by Taylor
3. 852 views
Three identical stars of mass M = 6.4 x 1030 kg form an equilateral triangle that rotates around the triangle's center as the
1. 0 answers
2. asked by jr
3. 851 views
how much energy is given off when 2.00 mol of CH4 are burned?
1. 1 answer
2. asked by nancy
3. 849 views
What company is related to mcdonalds?
1. 8 answers
2. asked by Lisa
3. 824 views
I have a question regarding the gastric wall. Do the epithelial cells of the mucosa secrete substances directly into the lumen
1. 0 answers
2. asked by Lena
3. 805 views
I am doing a paper on not for profit and for profit health care organizations and i am confused I know for profit is to make
1. 1 answer
2. asked by april
3. 799 views
A submarine has run into trouble and is stuck at the bottom of the ocean. Several people are on board and must make their way to
1. 0 answers
2. asked by Sam
3. 789 views
A 1500 kg car moving at 10 m/s is stopped by the action of its brakes. Thework done by the car's brakes is ____ Joules.
1. 0 answers
2. asked by bode
3. 789 views
Find center, vertices, co-vertices and foci for the following;(x-3(^2/49 + (y-4)^2/4 = 1 Center would be (3,4) A=7 b=2 Vertices
1. 2 answers
2. asked by Sheila
3. 778 views
what's the resulting acceleration when unbalanced force of 98N applied to a 5.1 kg object?
1. 1 answer
2. asked by nofa
3. 769 views
factor the polynomial:x^2 + 6x + 9
1. 2 answers
2. asked by Bob
3. 765 views
Balanced equation: 2HCL+CaCO2>CaCl2+CO2+H2Owhat volume of 6.00 M HCL is needed to completely react with .750 moles of CaCO3
1. 0 answers
2. asked by patti
3. 760 views
The knights role and fall of feudalism
1. 1 answer
2. asked by Mary
3. 753 views
Two sides of a triangle measure 4 inches and 9 inches. Determine which cannot be the perimeter of the triangle. A.19 inches,
1. 0 answers
2. asked by mel
3. 748 views
A nuclear reactor contains nuclei that fission when bombarded by slow neutrons. The fission reaction produces fast neutrons
1. 0 answers
2. asked by Megan
3. 746 views
What does a diagonal line going from right to left mean? This is a rebus puzzle.
1. 2 answers
2. asked by kely
3. 746 views
The combusion of glucose produces carbon dioxide and water vapor according to the chemical equation below:C6H12O6 (s) + 6O2 (g)
1. 0 answers
2. asked by Rachel
3. 738 views
find the circumference of the figure, Give both the exact value and an approximation to the nearest hundredth. Circle 6.6kmI am
1. 1 answer
2. asked by Jeannie
3. 729 views
Assume that the following transactions affected owners' equity for De Soto Inc. during 2011.Feb. 1- Sold 40,000 shares of common
1. 0 answers
2. asked by ibrahim
3. 727 views
Consider an economy with the production function L^(1/3)a) Derive the Labor demand Curve b) If Labor supply curve is L^s= (w/p),
1. 0 answers
2. asked by josh
3. 722 views
what would happen to the volume of the 100-L weather balloon if its temperature increases from 25 degrees Celsius to 125 degrees
1. 1 answer
2. asked by jacques shaw
3. 720 views
The questions in this exercise are based on JetBlue Airways Corporation. To answer the questions, you will need to download
1. 0 answers
2. asked by Angel
3. 720 views
An unstable atomic nucleus of mass 17.0 ¡Ñ 10¡V27 kg which is at rest disintegrates into three particles. One of the
1. 0 answers
2. asked by Matthew
3. 719 views
1/2ln(x+3)-lnx=0
1. 0 answers
2. asked by Meredith
3. 718 views
Which expression represents the larger number?A. 40.1 x 10 to the -6 power B. 4.1 x 10 to the -7 power C. 0.411 x 10 to the -6
1. 2 answers
2. asked by Melanie
3. 710 views
what is the indepenpent variable when i make a home made lava lamp
1. 2 answers
2. asked by iliana
3. 701 views
Magmas which have different chemical compositions have different temperatures i.e basaltic magmas erupt at about 1200 °C
1. 1 answer
2. asked by rebecca niles
3. 698 views
im studying for a test and i have no idea where to even start for this practice problem..??a 0.15M(molarity im assuming)solution
1. 1 answer
2. asked by hannah
3. 698 views
Can you please check these sentences for me? Thank you very much in advance.1)Each group has to interview an American host
1. 4 answers
2. asked by Mike
3. 695 views
Daniel gave 4/5 of his stickers to Javier. Javier’s collection of stickers increased to 64. If Javier had 28 stickers in the
1. 1 answer
2. asked by Katherine
3. 692 views

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