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Chemistry - September 2006

[Selected]: All categories Science & Mathematics Chemistry

balenced chemical equation

2006-09-16 18:36:55 · 5 answers · asked by Anonymous

why do you seldom see high-boiling solvents used as recrystallization solvents?

2006-09-16 18:31:48 · 5 answers · asked by Anonymous

Linear measurement volume or water displacement volume. Why?

2006-09-16 18:15:05 · 4 answers · asked by blue_bee 4

Does the density of water depend upon the amount of water being measured? why?

2006-09-16 18:04:18 · 8 answers · asked by blue_bee 4

2006-09-16 17:49:52 · 8 answers · asked by gregory_s19 3

2006-09-16 17:17:40 · 12 answers · asked by substance 2

2006-09-16 17:12:54 · 8 answers · asked by ASH 1

2006-09-16 17:10:11 · 18 answers · asked by Anonymous

2006-09-16 16:56:27 · 4 answers · asked by deathvirgen 1

2006-09-16 16:46:22 · 4 answers · asked by Anonymous

like chunks of milk were on the surface of the mixture... Was it safe for me to drink this? Why were there white chunks?

2006-09-16 16:21:56 · 12 answers · asked by tiff-fee-uh-nee. x_X 2

which occurs in a nonaqueous solvent: NaBH4 + BF3 -> B2H6 + NaBF4 (unbalanced). If the reaction has a 71% yield of diborane, how many grams of NaBH4 are needed to make 31.2 g B2H6?

2006-09-16 16:17:15 · 1 answers · asked by Anonymous

which occurs in a nonaqueous solvent: NaBH4 + BF3 -> B2H6 + NaBF4 (unbalanced). If the reaction has a 71% yield of diborane, how many grams of NaBH4 are needed to make 31.2 g B2H6?

2006-09-16 16:16:25 · 1 answers · asked by Anonymous

Methyltetrahydrofuran or Cyclopentanol

2006-09-16 16:03:41 · 2 answers · asked by afchica101 1

I Dont Know......I am just having difficulty with my drainage pipe's & someone mentioned some kind of Red Devil stuff.???? Does Anyone Know Anything About Plumbing???? & Stinking Stopped Up Kitchen & Bathroom Drain's????

2006-09-16 15:19:52 · 3 answers · asked by Milk Maid 1

Are there really truth serums and do they really work? if you how would one go about getting them or making them?

2006-09-16 15:18:12 · 6 answers · asked by xbeautifulxnightmarex666 2

this for a chem lab

2006-09-16 14:56:45 · 1 answers · asked by SphinxEyez999 2

2006-09-16 14:51:08 · 10 answers · asked by MAK 6

2006-09-16 13:55:59 · 5 answers · asked by Erin D 2

2006-09-16 13:43:39 · 13 answers · asked by danish 1

our science class made one with tin cans, candle, ater to see how much heat was absorbed by the water.
Would the heat of combustion be calculated higher or lower from a real calorimeter?

2006-09-16 12:50:32 · 2 answers · asked by sungirl 2

especially compounds

2006-09-16 12:30:43 · 4 answers · asked by blue skies 2

let to borrow has used a superglue to glue the string on to the hole, so what can I do to take that string off? Is there some chemical products I can use to dissolve the glue?

2006-09-16 12:16:05 · 4 answers · asked by love2you 2

2006-09-16 12:09:04 · 5 answers · asked by RED MIST! 5

In this expression what is acting as the Bronsted-Lowry acid and the Bronsted-Lowry base? What is acting as the Arrhenius acid and the Arrhenius base?

HCO3- + H2O <--> H3O+ + CO3^2-

2006-09-16 12:08:20 · 2 answers · asked by RED MIST! 5

HCO3- <-> H+ + CO3^2-

2006-09-16 12:06:40 · 3 answers · asked by RED MIST! 5

Sometimes I see it written as 1s 2s 2p 3s 3p.. and sometimes as 1s 2s 2px 2py 2pz 3s... What is the difference and what are the x y and z for? Which one is correct? And what would come next in the second arrangement? ( 2py 2pz 3s....?) Thanx

2006-09-16 11:42:14 · 5 answers · asked by atomic blue 1

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