Chemistry - February 2007

2007-02-06 12:59:00 · 5 answers · asked by elegant_disaster 1

2) How many atoms are in the sample? Please be sure to show your work.

2007-02-06 12:53:49 · 1 answers · asked by shafali v 1

How do you determine if a molecule is Isoelectronic?

2007-02-06 12:46:47 · 1 answers · asked by anthony111084 1

What family is the element Samarium (Sm) Atomic # 62 on the periodic table? and why?

And if you feel like answering this why is its number 62 imporant and its GMM 150.4?

2007-02-06 12:42:59 · 1 answers · asked by A 2

.......it seems that suspension is not the solution,
will he sink to the bottom of class
or will the problem just dissolve on its own?

2007-02-06 12:38:37 · 1 answers · asked by Yo Mum Mum 5

i need atleast two examples. please it would be very helpful.

2007-02-06 12:35:00 · 6 answers · asked by ferraribluerims 2

2007-02-06 12:21:32 · 4 answers · asked by Sublime 2

Cl2(g) ↔ 2Cl(g)

Cl(g) + CHCl3 → HCl(g) + CCl3 (slow)

CCl3 + Cl(g) → CCl4(g) (fast)

Which of the following are true statements for the above mechanism ?


a) Cl(g) does not appear directly in the overall rate law


b) k1[Cl2] = k-12[Cl]


c) Cl(g) does not appear in the overall reaction


d) If this is a correct mechanism the observed law would be
Rate = k[Cl2][CHCl3]

2007-02-06 12:19:48 · 1 answers · asked by beemer 1

What would be the formula for manganous acetate, cupric sulfate pentahydrate, and tin (II) permanganate?

2007-02-06 12:19:31 · 1 answers · asked by glance 3

describe how you would obtain pure naphthoic acid from this mixture.

2007-02-06 12:17:16 · 2 answers · asked by Anonymous

2007-02-06 12:14:23 · 2 answers · asked by chester rey s 1

This is due for wednesday feb 7 at night but not sure how to: Show the reaction of 4-phenylphenol with KOH. Indicate which layer (aqueous or organic) each component in the reaction will mainly reside in.

2007-02-06 12:11:19 · 1 answers · asked by Anonymous

Must a nuclear power plant maintain a chain reaction?
Does nuclear fission produce long-lived radioactive by-products?
What exactly is a long-lived radioactive by-product?

2007-02-06 12:10:08 · 5 answers · asked by Domino 1

2007-02-06 12:09:57 · 1 answers · asked by Brian D 1

What would be the formula of sodium dihydrogen phosphate and potassium aluminum sulfate?

2007-02-06 12:08:08 · 2 answers · asked by Shane 1

2007-02-06 11:59:40 · 1 answers · asked by bbap 1

how can i tell whether a molecule is polar or non polar?
thanks

2007-02-06 11:58:38 · 3 answers · asked by Anonymous

Silly question, but it confused me.

If mothballs gradually disappear at room temperature, this would be a chemical change correct? Since we would be unable to get them back to their normal state. Same with if baking soda dissolves in vinegar and producing bubbles, right?

2007-02-06 11:57:12 · 4 answers · asked by immageek 1

What would be the names of...
Cr2(SO3)3
Al(MnO4)3
Hg3N2
KAl(SO4)2

2007-02-06 11:47:52 · 2 answers · asked by Kippy 1

I have heard that the real farther is Jabir Ibn Haiyan. I did some research and I found that this is true but is it really?

2007-02-06 11:40:46 · 4 answers · asked by Who said my name? 2

Anyone care to explain?

2007-02-06 11:39:52 · 9 answers · asked by Anonymous

What element on the periodic table has 20 neutrons?

2007-02-06 11:38:39 · 3 answers · asked by melissa908 1

my test is coming soon. any advice or good links would be helpful.

2007-02-06 11:36:15 · 1 answers · asked by angela 1

2007-02-06 11:34:23 · 1 answers · asked by snowangels 2

i want to know the path of a particle as it burns. it should show why/when they become oxidized, when it turns into flame or photons and when does it end up being a particle of smoke. Obviously, you can't draw in your answer but a detailed description would be great.
Thanks

2007-02-06 11:27:40 · 1 answers · asked by brandon 5

can some one please explain carbon14 dating to me?

2007-02-06 10:46:29 · 2 answers · asked by Leah S 1

What two elements are of the periodic table are brought together to make the diode? Similarly, what types of materials and elements of the periodic table are brought together to make a NPN transistor? Could you explain how these elements work in each? Thanks

2007-02-06 10:37:18 · 2 answers · asked by Anonymous

i want to make a bomb but the one i want to make uses muriatic acid and i don't have that can i use any thing like some kind of acid that toilette cleaners use becasue i hear of it but im not sure what the name of the acid that the toilette cleaner uses, and oh yeah its supposed to work with aluminum for example aluminum and some kind of acid i can find some where easily, some kind of basic acid

2007-02-06 10:25:37 · 3 answers · asked by Anonymous

why don't it stick to the inside of the tube ???

2007-02-06 10:10:35 · 13 answers · asked by Anonymous

Its realated with chemistry,exolsive reactions,activation energy,, potential enery. I learning about those things now and i came up with this question.

2007-02-06 10:06:56 · 18 answers · asked by Ballerina 5