11/25/14

what is mean by aromatic schiff base
schiff base mean imine but what is meaning of aromatic schiff base
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11/24/14

Chemistry (Please explain)
1.) How much of a 1.80M sodium sulfate solution in milliliters is required to completely precipitate all of the barium in 190.0mL of a 0.300M barium nitrate... more
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11/22/14

Why does time slow down when you travel near the speed of light?
We learned about the Einstein train that travel nearly the speed of light and it's just said that the time slows down when you get close to the speed of light. But I don't understand how did they... more
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11/18/14

I have no I have no idea how to solve these problems.
*I need an someone to explain to me how to solve these problems*     How many moles of tin atoms are in a pure tin cup with a mass of 42.7g ?   A pure gold coin contains 0.139mol of gold.What... more
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11/17/14

Its a question about Chemistry
  For each of the following compounds, give the formula, charge, and number of each ion that makes up the compound. (For example, for H2SO4, enter SO4 in the anion box, -2 in the charge box, and 1... more
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11/17/14

an explanation about the following points:
• names and actions of principal hormones produced by each gland• hormone responses to extremes of stress and alarm 
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11/17/14

Clearly explain the interrelationship between the different structures in the endocrine system and their related hormones to explain how the system works toge
Clearly explain the interrelationship between the different structures in the endocrine system and their related hormones to explain how the system works together.
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11/17/14

The length of a rectangle is 11 m less than three times the width, and the area of the rectangle is 70 m2 . Find the dimensions of the rectangle.
The length of a rectangle is 11 m less than three times the width, and the area of the rectangle is 70 m2 . Find the dimensions of the rectangle. length  width
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11/16/14

Chemistry ( can you please explain everything step by step so I can learn how to do it.)
Determine the theoretical yield of C when each of the following amounts of A and B are allowed to react in the generic reaction: 2A+3B→2C   A.) 2 molA; 4 molB B.)5 molA; 6 molB C.) 4 molA; 5 molB
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11/16/14

The length of a rectangle is five times its width. If the perimeter of the rectangle is 84cm, find its area
The length of a rectangle is five times its width. If the perimeter of the rectangle is 84cm, find its area
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11/16/14

twelve decreased by twice a number is -7. find the number
need help
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11/16/14

State License Plates
In a certain state license plate consists of three digits followed by 4 letters.   Find: a. The Number of license plates possible if repetition is allowed. b. The number of license plates... more
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11/16/14

expression that most accurately describes the basic units of that substance?
categories: single atoms diatomic molecules molecules formula units  HgBr2 Xenon Copper KMnO4 Ni C3H8 Ca(OH)2 SO2 H2 Chlorine CoCL2 Oxygen
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11/16/14

How do I write a equation in standard form from the points (0,3),(2,-3)
How do I write a equation in standard form from the points (0,3),(2,-3) after I wrote it in point slope form. How do i rewrite the  equation in standard form
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11/16/14

the function of the endocrine system within the body. How does it bring about changes within the body?
outline the function of the endocrine system within the body. How does it bring about changes within the body? 
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11/15/14

Explain why the resultant force of the balloon must be zero.
A hot air balloon is moving at a constant speed of 3 m/s horizontally, but is not moving in a vertical direction. The total mass of the balloon and its passengers is 3000kg and the weight is 30000 N.
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11/14/14

Chemistry Reaction Please Help! Im struggling to understand
Given the reaction Pb(NO3)2(aq)+2NaCl(aq)--->PbCl2(s)+@NaNO3(aq) If 0.0400 moles of Pb(NO3)2 was allowed to react with 0.0500 moles of NaCl, What is the theoretical yield? The limiting reagent?... more
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11/14/14

Chemistry. How much carbon dioxide (in grams) is formed from complete combustion of 6.20 grams of C12H22O11
How much carbon dioxide (in grams) is formed from complete combustion of 6.20 grams of C12H22O11  
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11/04/14

I need help with this question below
A pole that is 3.5m tall casts a shadow that is 1.14m long. At the same time, a nearby building casts a shadow that is 50.25m long. How tall is the building? Round your answer to the nearest meter.
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11/04/14

A gene that is believed to be active in primary metabolism has been sequenced.
A gene that is believed to be active in primary metabolism has been sequenced. Please replicate the sister strand to the code that has been provided. Then transcribe the sister strand. Please note:... more
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11/04/14

in algebra how would you Write the equation of the line that passes through (-4, 3) and (1, 13).
in algebra how would you Write the equation of the line that passes through (-4, 3) and (1, 13).
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11/03/14

The price of a usb flash drive increase to five-fourths its original price. The new price is $25. Find the original price of the drive
I need help.
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11/02/14

prostate cancer punnet square help needed
Obviously only men can get prostate cancer. So if a husband and wife want to start a family and the husband has prostate cancer what is the chance they have a boy with prostate cancer? I don't get... more
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10/05/14

word problem: A rectangle is 6 inches longer thsn it is wide. the perimeter of the rectangle is 112 inches. what are the dimensions of the rectangle?
I drew a rectangle and this is the equation I came up with. W+6+w+6+w+w=112 4w+6=112  Am I in the right path When in solve I got a w=25 Then I plug in to  4(25)+12=112 I don't think I did... more
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10/05/14

how to write an equation for the linear function f with the given values; f(0)=-1,f(3)=-10
Im in alegra 1 and don't get how to solve, help?
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