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Chemistry - November 2006

[Selected]: All categories Science & Mathematics Chemistry

as water. The HCl has a molarity of 1.00mol/L(M)

2006-11-22 11:16:09 · 4 answers · asked by Arnold M 1

a. 150.0g Fe2O3
b. 10.0mg No2
c. 1.0 femtomoles of NO2
d. 1.5 x 10^16 molecules of BF3
e. 2.6 mg BF3

please tell what conversion factors used. thank you.

2006-11-22 10:47:23 · 2 answers · asked by j a 1

2006-11-22 10:40:41 · 8 answers · asked by bodogdog 1

2006-11-22 10:29:28 · 7 answers · asked by wildheavenfarm 3

2006-11-22 10:22:48 · 10 answers · asked by Anonymous

post-1982

2006-11-22 10:07:31 · 6 answers · asked by anonymous 4

2006-11-22 10:03:22 · 3 answers · asked by ibid 3

2006-11-22 10:01:53 · 10 answers · asked by Anonymous

2006-11-22 09:09:46 · 3 answers · asked by Catherine D 1

Give a possible set of values of the four quantum numbers for all the electrons in a carbon atom if it is in the ground state.

2006-11-22 09:06:09 · 2 answers · asked by Catherine D 1

State precisely what is meant by each of the following four terms. Then distinguish clearly between each of the two terms in part (a) and between each of the two terms in part (b) , using chemical equations or examples where helpful.

(a) Bond polarity and molecular polarity (dipole moment)

(b) For a metal M, ionization energy and electrode potential

2006-11-22 09:01:34 · 1 answers · asked by T 1

2006-11-22 09:00:49 · 3 answers · asked by STORMY K 3

This is not an attempt to bypass my homework responsibilities! This question featured in the June 2002 "Chains, Rings & Spectroscopy" Chemistry paper - Advanced GCE OCR (UK) which I completed as a mock exam recently. My tutor/teacher agrees with my suggested answer (I don't want to pre-empt your answers!) but is puzzled as to why the question was aimed at halogenated phenols instead of just general phenols. We do not have access to the relevant Mark Scheme.

2006-11-22 08:54:48 · 3 answers · asked by Gobbledygook 2

2006-11-22 08:54:09 · 3 answers · asked by Anonymous

2006-11-22 08:37:25 · 3 answers · asked by madelinezimmerman 2

2006-11-22 08:10:46 · 7 answers · asked by jake and his snake 1

i am doing a paper on chemical reactions and i cant find anything on the internet

2006-11-22 08:05:10 · 5 answers · asked by MaryQuiteContrary 2

Describe and explain if possible :)

2006-11-22 08:03:21 · 2 answers · asked by sun2001hi 1

Not quite sure how to approach this equation at all.

2006-11-22 07:33:18 · 2 answers · asked by countrygurl587 3

suppose someone tells you that a green object contains copper. you are not convinced, as you have seen copper wires and copper jewellery are reddish-brown metal. Is it possible that this green substance really does contain copper, explain....

2006-11-22 07:31:28 · 7 answers · asked by Geron P 1

What reagent(s) and reaction conditiions are needed to vonvert toluene into 2,4,6-trinitrotoluene. I need an answer by 11:30 tonight if possible. The answer has to be a well developed paragraph.

2006-11-22 07:11:55 · 5 answers · asked by I need help PLEASE!!!!!!!!!!!!!! 1

This also has to be in a well developed paragraph but not a dissertation.

2006-11-22 07:08:27 · 3 answers · asked by I need help PLEASE!!!!!!!!!!!!!! 1

2006-11-22 07:02:33 · 10 answers · asked by BaD mAn R 1

2006-11-22 07:02:21 · 3 answers · asked by Koko ; 4

i'm thinking that the answer may be soapy products but not 100% sure? please help

2006-11-22 06:35:17 · 4 answers · asked by paul g 1

0

I have a huge end of semester test and i need help understanding hybridization and answering some of these questions. anything helps...thanks.


1.SO2-
Why doesn't his create a double bond?

2.How do you know polarities based on the shape of a molecule or bond?

3.NO2-
Why is this hybridized as sp2 shouldn't it be sp since it has two unpaired electrons

4. NH3
why is this hybridized as sp3 shouldn't it be sp since it has 2 unpaired electrons

5. how do you draw out hybridizations

6. what factor determines the shape of a molecule

7. Can a molecule be polar w/o polar bonds w/ in the molecule

8. Can a molecule with polar bonds be nonpolar

9. How do you know whether a molecule or bond is paramagnetic or diamagnetic

2006-11-22 06:16:55 · 2 answers · asked by L B 2

2006-11-22 06:02:09 · 6 answers · asked by Capt. Jim 1

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