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2012
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Questions Asked on March 30, 2012

Rank the following ionic compounds by lattice energy.Highest to Lowest LiCl MgO Na2O Beo Na2S
1. 3 answers
2. asked by Jeremy
3. 9,623 views
Give the chemical formula for trans-dichlorobis(ethylenediamine)platinum(IV). Use (en) as the symbol for ethylenediamine.
1. 4 answers
2. asked by Katie
3. 8,078 views
2. The rate of change in the number of bacteria in a culture is proportional to the number present. In a certain laboratory
1. 1 answer
2. asked by naseba
3. 5,995 views
Two point charges are fixed on the y axis: a negative point charge q1 = -23 µC at y1 = +0.23 m and a positive point charge q2
1. 2 answers
2. asked by Kelly
3. 4,682 views
Construct the octahedral crystal-field splitting diagram for the metal in each species.Cr4+ Mn(H2O)6^2+
1. 2 answers
2. asked by Katie
3. 4,658 views
How many outer-shell d electrons are there in each of the following transition-metal ions?Re(III) Sc(III) Ru(IV) Hg(II)
1. 2 answers
2. asked by Katie
3. 4,635 views
A baseball is tossed at a steep angle into the air and makes a smooth parabolic path. Its time in the air is t and it reaches a
1. 1 answer
2. asked by liz
3. 4,614 views
The resolution limit of a microscope is roughly equal to the wavelength of light used in producing the image. Electron
1. 2 answers
2. asked by Ashley
3. 3,472 views
The angle of elevation of the sun is 31 degrees. Find the length of the shadow, to the nearest foot, of a man that is 6 feet
1. 4 answers
2. asked by Anonymous
3. 3,427 views
Calculate the level from which the electron fell, n2, for the hydrogen line you observed.wavelength (lambda) = 400 nm n1 = 2 RH
1. 5 answers
2. asked by Priscilla
3. 3,144 views
Which of these ions have one d electron in the outmost d subshell?Zn2+ Fe2+ y2+ Cd2+ Sc2+ Hg2+ Tc2+
1. 1 answer
2. asked by Katie
3. 3,056 views
A model airplane is made on a scale of 1:128.A)What is the scale factor of the model? B)If the airplane has a wingspan of 30 cm,
1. 2 answers
2. asked by Sari
3. 2,957 views
Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard
1. 4 answers
2. asked by Jae
3. 2,577 views
what are the chemical formula for sodium tetrachloroplatinate(II) and tris(ethylenediamine)cobalt(III) bromide
1. 1 answer
2. asked by Katie
3. 2,575 views
Charlotte is building a dollhouse that is a scale replica of her own house. One of the windows on the front of the house is 105
1. 3 answers
2. asked by Charlotte
3. 2,551 views
Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 7.63 x
1. 2 answers
2. asked by Jim
3. 2,538 views
Which of these ions have five d electrons in the outermost d subshell?Mn2+ Fe2+ Re2+ Y2+ Tc2+ Zn2+ Ru2+
1. 3 answers
2. asked by Katie
3. 2,513 views
Quadrilateral ABCD is a square. The coordinates of point A are (3,2), coordinates of point B are (-3,2),and the coordinates of
1. 5 answers
2. asked by Dennis
3. 2,489 views
A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper.If the loop's diameter changes
1. 2 answers
2. asked by Nadine
3. 2,245 views
what is the volume of a triangle prism with a base area of 24ft*2 and a height of 18ft
1. 8 answers
2. asked by jack
3. 2,053 views
A mixture of 8.95 g of Cl2 and 18.0 g of NO2 and an undetermined amount of SO2 occupies a volume of 22.4 liters at 760 mm Hg and
1. 3 answers
2. asked by marie
3. 1,941 views
Please Help,Two point charges are fixed on the y axis: a negative point charge q1 = -23 µC at y1 = +0.23 m and a positive point
1. 1 answer
2. asked by matt
3. 1,834 views
convert to scientific notation....0.00024
1. 3 answers
2. asked by sherry
3. 1,797 views
Name School TeamEvent 3: Logic and Reasoning (with calculators) 5th/6th grade Math Meet ‘08 For each number pattern, fill in
1. 1 answer
2. asked by Anonymous
3. 1,539 views
An account invested in a money market fund grew from $67,081.2 to $67,359.39 in a month. What was the annual interest rate?
1. 1 answer
2. asked by Anonymous
3. 1,512 views
i need help setting this problem up i know what the answer is but need to know how to get to it.calculate the kinetic energy in
1. 1 answer
2. asked by Debbie
3. 1,434 views
a business leases a building for one year starting 1 october 2003. The rent is $24000 per year and business paid cash one year
1. 0 answers
2. asked by steve
3. 1,413 views
Find the Electron DOMAIN GEOMETRY & the MOLECULAR GEOMETRY of the following compounds:1) ICl3 2) PCl3 3) XeF4 4) SF6 5) TeCl4
1. 1 answer
2. asked by BMW
3. 1,409 views
A sample of N2 gas occupies a volume 180 mL at STP. What volume, in L, will it occupy at 640 mm Hg and 295 K?
1. 1 answer
2. asked by marie
3. 1,399 views
find the total differential of the functionf(x,y)= xye^(x+y)
1. 1 answer
2. asked by robert
3. 1,355 views
I am a little confused on how to research the following:• Select 1 racial group from the list below: o African American o
1. 1 answer
2. asked by Bella
3. 1,342 views
Writeacher, I need your help to find exercises on the following grammar topics:1) Defining and non-defining relative clauses.
1. 4 answers
2. asked by Matthew
3. 1,250 views
A force of 38 newtons is acting on an object making an angle of 65º with the horizontal. What is the value component of the
1. 3 answers
2. asked by LinaBina
3. 1,247 views
$10,000.00 loan at 8% to be paid in full in 88 months. How much interest would be due at the payoff of the loan?
1. 3 answers
2. asked by Susan
3. 1,221 views
subtract the polynomialsplease help having trouble (-12a^2+3a+3)-(6a^2+3)
1. 1 answer
2. asked by Lavern
3. 1,213 views
who is lady justice?Please i don't want any words that are huge. I want it in a 7th grade level.
1. 5 answers
2. asked by Laruen
3. 1,207 views
Jolie has 6 quarters, 6 dimes, 4 nickels, and 10 pennies in her coin purse. If two coins are drawn at random without
1. 1 answer
2. asked by Kay
3. 1,203 views
The 2nd, 3rd and 4th term of an ap are x-2,5,x+2 respectively ,calculate the value of x
1. 1 answer
2. asked by wale2
3. 1,199 views
1. For cutting dress fabric, it's recommended that you useA. pinking shears. B. a seam ripper. C. dressmakers shears. D. small
1. 2 answers
2. asked by Tamera
3. 1,199 views
The earth has a radius of 6.38 106 m and turns on its axis once every 23.9 h.A. What is the tangential speed (in m/s) of a
1. 2 answers
2. asked by Natasha
3. 1,199 views
Why were the cash economies introduced by the Europeans unsuitable for African countries?
1. 1 answer
2. asked by Sarah
3. 1,165 views
fact and opioniona statement of fact can be proved true or false. a statement of opinion gives someone's thoughts or feelings
1. 1 answer
2. asked by dw
3. 1,154 views
I am doing a paper on the occipital lobe. My sources have to be very reliable and good. Do you know oh any collages or
1. 1 answer
2. asked by rebekah
3. 1,140 views
1. Find a line that shows that Mr. Covey did not care that Douglass was too sick to work. (Chapter 10)2. Find a line that shows
1. 3 answers
2. asked by Bell
3. 1,134 views
A rock thrown horizontally from a bridge hits the water below at a horizontal distance x directly below the throwing point. The
1. 1 answer
2. asked by liz
3. 1,117 views
Suppose you weigh 105 . How much would you weigh on other planets in our solar system? Assume you can stand either on the
1. 3 answers
2. asked by Alex-Johnson
3. 1,089 views
A spoked wheel with a radius of 44.0 cm and a mass of 1.90 kg is mounted horizontally on frictionless bearings. JiaJun puts his
1. 2 answers
2. asked by Riya
3. 1,060 views
What are the implications of this shift for hospitals, consumers, and the health care delivery system as a whole
1. 1 answer
2. asked by shannon
3. 1,059 views
use method of substitution to solve the system of linear equation3x+4y=3/2 y=2x-1
1. 1 answer
2. asked by scott
3. 1,056 views
What is the volume at STP, in liters, occupied by 26.4 g of F2 gas?
1. 1 answer
2. asked by marie
3. 1,052 views
Why did Ratcliffe replace the original president?
1. 2 answers
2. asked by Ca
3. 1,049 views
E,F MID POINTS OF AB AND CD PROVE THAT EF=1/2(AE+BC)+EF||AD+EF||BC HERE ABCD IS A TRAPIZIUM
1. 0 answers
2. asked by Anonymous
3. 1,028 views
A customer is buying a $100 drill and two $15 drill bit sets. The customer uses a gift card worth $50 to pay for a portion of
1. 1 answer
2. asked by Anonymous
3. 998 views
Flying with the wind, a pilot flew 600 mi between two cities in 4 h. The return trip against the wind took 5 h. Find the rate of
1. 1 answer
2. asked by PLEASE NEED HELP
3. 983 views
For which value(s) of k will the dot product of the vectors (k,2k-1, 3) and (k,5,-4) be 7?I did this so far, 2k-1=5 6/2 k=3
1. 1 answer
2. asked by Jake
3. 975 views
We are currently bidding on Treasury bills and have determined that we must have a 5% return for a $1,000 T-Bill that will
1. 0 answers
2. asked by Kim
3. 967 views
Salma's penny bank is 1/2 full. After she adds 360 pennies, it is 4/5 full. How many pennies can Salma's bank hold?
1. 2 answers
2. asked by steven
3. 934 views
Please Helptype exponential notation with positive exponents Divide and simplify c^7/c^16
1. 1 answer
2. asked by Lavern
3. 904 views
If3,x,y,18 are in arithmetric progression , find the value of x and y
1. 3 answers
2. asked by wale
3. 890 views
Rank the following ionic compounds by lattice energy.Highest to Lowest LiCl MgO Na2O Beo Na2S
1. 1 answer
2. asked by Jeremy
3. 856 views
Estimate the gallons of paint needed to cover the outside of a cylindrical silo which is 30 feet in diameter and 70 feet high.Do
1. 2 answers
2. asked by Nilan
3. 837 views
A spherical glass ornament is 7.00 cm in diameter. An object is placed 11.8 cm awayfrom the ornament. a) Where will its image
1. 1 answer
2. asked by Angel
3. 816 views
The 8th term of ap is 5time the 3rd term, while the 7th term is greater than the 4th term, write the first 5 term of the ap
1. 2 answers
2. asked by wale
3. 808 views
Ngata Corp. issued 18-year bonds 2 years ago at a coupon rate of 9.6 percent. The bonds make semiannual payments. If these bonds
1. 0 answers
2. asked by Anonymous
3. 804 views
Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring
1. 1 answer
2. asked by Brian
3. 796 views
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine
1. 1 answer
2. asked by Natasha
3. 795 views
The distance to the nearest 100000 km from Earth to the moon is given as 400000 km.The average speed to the nearest 500 km/h of
1. 0 answers
2. asked by Friesam
3. 791 views
need to figure out how to calculate.the value of DeltaH for the reaction below is -72kj_____kj of heat are released when 1.0
1. 1 answer
2. asked by Debbie
3. 790 views
what is the area of a rectangle 14ft x 8ft
1. 3 answers
2. asked by aleah
3. 785 views
The prong of a tuning fork moves back and forth when it is set into vibration. The distance the prong moves between its extreme
1. 2 answers
2. asked by Riya
3. 779 views
An unusual die has six faces labelled 1,2,3,5,7 9. If two of these dice are rolled, and the numbers showing on the upper faces
1. 0 answers
2. asked by Rezu
3. 777 views
Some bacteria are propelled by biological motors that spin hair-like flagella. A typical bacterial motor turning at a constant
1. 1 answer
2. asked by Natasha
3. 776 views
Matt owns an ice cream shop and wants to know the volume of the sugar cones that he has in his shop. Find the approximate volume
1. 1 answer
2. asked by ale
3. 765 views
I did an experiment where I had 5 ml of MgCl2, then 5 ml NH4 solution (NH4OH (aq)) was added and it was observed that a
1. 2 answers
2. asked by Fresca
3. 761 views
A cannon tilted up at a 34.0^\circ angle fires a cannon ball at 69.0 m/s from atop a 23.0 m-high fortress wall. What is the
1. 1 answer
2. asked by Cody
3. 759 views
Rates of reaction, redox reactions? 10 points?An structural isomer of bromobutane (C4H9Br) can be hydrolysed using aqueous
1. 4 answers
2. asked by Local
3. 757 views
Finances. During one month, a homeowner used 500 units of electricity and 100 units of gas for a total cost of $352. The next
1. 1 answer
2. asked by PLEASE NEED HELP
3. 746 views
A +5.7C X 10 to the -6 power point charge is on the x-axis at x=-3.0m,and a +2.0C X 10 to the -6 power point charge is on the
1. 1 answer
2. asked by bob
3. 745 views
Electron DOMAIN GEOMETRY & the MOLECULAR GEOMETRY of the following compounds:1) ICl3 2) PCl3 3) XeF4 4) SF6 5) TeCl4
1. 2 answers
2. asked by BMW
3. 738 views
solve by addition methodx +3y +z =6 3x + y – z = -2 2x +2y – z = 1 thanks
1. 0 answers
2. asked by PLEASE NEED HELP
3. 736 views
Write an equation of a cosine function with Amplitude=4, Period=pi/2, and Phase Shift=-pi?
1. 0 answers
2. asked by Purplechick4
3. 735 views
A mixture of 8.95 g of Cl2 and 18.0 g of NO2 and an undetermined amount of SO2 occupies a volume of 22.4 liters at 760 mm Hg and
1. 1 answer
2. asked by marie
3. 733 views
An electron traveling at 4.3×105 m/s has an uncertainty in its velocity of 1.92×105 m/s.What is the uncertainty in its
1. 0 answers
2. asked by missy
3. 730 views
Where in the Harry Potter series does hermione Granger become a woman?
1. 2 answers
2. asked by Tina
3. 728 views
Work of 700 J is done by stirring an insulated beaker containing 110 g of water.(a) What is the change in the internal energy of
1. 1 answer
2. asked by Tiffany
3. 717 views
in 1968, vehicle emmision standards allowed 6.3 hydrocarbons released per mile driven. By 1980, the standards allowed only .41
1. 0 answers
2. asked by Anonymous
3. 716 views
BACKGROUND:Ten years ago, I started working as a clerk for DMD Medical Supplies. Six months ago, Liz, the human resources
1. 1 answer
2. asked by Kayla
3. 712 views
A student wants to display the average monthly temperatre for one year.He chooses a line graph to display the data.Describe and
1. 0 answers
2. asked by Zoe
3. 692 views
An experiment makes use of a water manometer attached to a flask. Initially the two columns in the gas manometer are at the same
1. 1 answer
2. asked by ms
3. 690 views
A square ABCD is inscribed in a circle. The circle is folded to form a semi-sircle, andanother square EFGH is inscribed in this
1. 0 answers
2. asked by hadi
3. 674 views
An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its
1. 0 answers
2. asked by dmkp
3. 674 views
Select any concept from this week.(Linear equations,exponents, Logarithmic problemsWrite a 350- to 700-word response in which
1. 1 answer
2. asked by Tiara
3. 671 views
Questions:1) a priest who brought Christianity to Ireland 2) a separation of the two most important branches of Christianity 3)
1. 4 answers
2. asked by ☻i♥zee☻
3. 662 views
identify and describe one environmental problem that causes ill health,accident,crises,and disasters within your community or
1. 11 answers
2. asked by mokoena terry
3. 656 views
A satellite with a mass of 113 kg approaches a large planet at a speed vi,1 =10.3 km/s. The planet is moving at a speed vi,2
1. 4 answers
2. asked by TUGÝ
3. 655 views
Which one of the following statements best describes what a budget is?
1. 1 answer
2. asked by nay nay
3. 647 views
two egatively charged particles repel one other with an electrostatic force of 5 newtons. determine how the sign and manitude of
1. 2 answers
2. asked by savid
3. 646 views
An experiment makes use of a water manometer attached to a flask. Initially the two columns in the gas manometer are at the same
1. 0 answers
2. asked by ms
3. 645 views
Steve is building a slide for a new park. He wants the height of the slide to be 6 feet, and he wants the horizontal distance
1. 1 answer
2. asked by Jae
3. 638 views
Another one I'm not sure about is the limit as x approaches infinity of (x^2)/lnxI took the derivative of the top and bottom and
1. 1 answer
2. asked by Jasmine
3. 628 views

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