Chemistry - January 2007

before you answer please understand i am not going to boot leg, but trying to speed up the process of purifing store bought ethonol (which is deffinity unsuitable for drinking).

Is the sugar found in wine making/ fermentaion and common house hold sugar the same? they are both considered simple sugars but im still not sure.

also is there a difference in the yeast organism, or do all yeasts convert sugar into CO2 and ethonol?

2007-01-02 11:26:10 · 1 answers · asked by Flaming Pope 4

What is the process of extrating oxygen from carbon dioxide. Or does it have any oxygen at all? If not why the O2 is in it?

2007-01-02 11:15:16 · 7 answers · asked by thewiseone 3

i read a definition for it but i don't quite get it. what does it mean by "a base is any substance that can accept H+ ions"?

2007-01-02 11:11:23 · 8 answers · asked by Anonymous

2007-01-02 11:09:45 · 4 answers · asked by Anonymous

2007-01-02 11:06:56 · 3 answers · asked by marco 1

a. KOH + HCl ---> KCl + H20
b. 2Na + Zn(NO3)2 ---> 2NaNO3 +Zn
c. 2C2H6 +7)2 ---> 4CO2 +6H2O
d. H2O + CO2 ---> H2CO3

2007-01-02 10:49:03 · 4 answers · asked by Ryoma Echizen 3

What should I write for an introduction for an opinion paper on global warming? (In this opinion paper I disagree on points that Al Gore made in the movie "An Inconvenient Truth")

2007-01-02 10:47:22 · 6 answers · asked by untilyoucamealong04 3

ice melts slower in higher density right?

2007-01-02 10:45:51 · 3 answers · asked by Anonymous

2007-01-02 10:44:14 · 1 answers · asked by Ryoma Echizen 3

2007-01-02 10:43:12 · 4 answers · asked by Ryoma Echizen 3

2007-01-02 10:41:21 · 4 answers · asked by Ryoma Echizen 3

In the northern climates freezing rain is a hazard to driving. When this occurs, salt is sprinkled on the roads and warm air from the defroster is blown against the windshield of an automobile in order to restore visibility. It would be convenient to have a system to have a system that automatically turned the defroster blower system ON and OFF as needed. A thermostat embedded in the windshield to detect tempurature could be used to perform this function. What temperature should the thermostat be set to turn on/off the hot air blower?

2007-01-02 10:35:38 · 2 answers · asked by Kate K 1

2007-01-02 10:26:34 · 0 answers · asked by Kate K 1

2007-01-02 09:33:31 · 9 answers · asked by Hiborn 1

A 1.000-g sample of a metal chloride, MCl2, is dissolved in water and treated with excess aqueous silver nitrate. The silver chloride that formed weighed 1.286 g. Calculate the atomic mass of M. A) 222.8 g B) 76.00 g C) 152.0 g D) 304.0 g E) none of these

2007-01-02 09:26:07 · 5 answers · asked by sunneyzwang@sbcglobal.net 2

I saw the movie Boondock Saints not too long ago (I'd recommend it for any who haven't seen it). Toward the end of the movie, the two protagonists (who are extremely lucky crime-fighting vigilantes) use a spray-bottle of ammonia to cover up their spilled blood. Somehow, this made it impossible for forensics to acquire a DNA sample from those blood-spots, when they appeared in a later scene.

If I had to guess, I'd say that ammonia [is supposed to, in the movie] neutralize DNA, because ammonia is a base and DNA is an acid ("DNA" stands for "deoxyribonucleic acid")

So my question is: can ammonia neutralize DNA or otherwise make it impossible to take a sample? Or is it really just diluting it to a point where taking a sample is nearly impossible?

In asking this I also remember that urine has a high ammonia content, yet, to my knowledge, I don't think this prevents anyone from acquiring DNA samples from urine.

2007-01-02 09:04:42 · 1 answers · asked by Logan 5

Happy 2007 to everyone...

I have 3 chemistry that are all very similar but I do not understand the meaning behind it or how to solve it even with the solution manual's answer. I was wondering if someone could explain it to me. Thank You.

Q: All the molecular equations below have the same net ionic equation in aqueous solution except:

1. HI + KOH --> H2O + KI
2. HNO3 + NaOH --> H2O + NaNO3
3. HF + NaOH --> H2O + NaF

A: 3

Q: All the following acid-base reactions have the same net ionic equation except:

1. HF + RbOH
2. HClO4 + KOH
3. HNO3 + NaOH

A: 1

Q: All the reaction below have the same net ionic equation except:

1. NaOH + HBr
2. RbOH + HF
3. BA(OH)2 + HI

A: 2

2007-01-02 09:00:43 · 4 answers · asked by asidy 1

I really like chemistry and I want to be an anesthesiologist. But I go to a small high school with few opportunities, and sometimes I'm not sure if my teacher even knows what she is talking about. Are there any good websites that teach chemistry, especially on a health-field level? Any suggestion would be greatly appreciated!

2007-01-02 08:26:33 · 5 answers · asked by Kate 3

Gain/lose electrons, and the resulting ions are smaller/larger

2007-01-02 08:03:47 · 2 answers · asked by Lisa 1

ok heres the equation:

Co(+3) + 3OH- ---> Co(OH)3

my questions:
is this a precipitate reaction?
and
what are four metal ions that will not react with OH- in that manner?

2007-01-02 07:51:39 · 1 answers · asked by silverstar4591 1

has anyone made a home made hyrogen fuel cell which really works,running on water.

2007-01-02 07:44:09 · 4 answers · asked by tugboat 4

a) Nucleons
b) Electrons
c) Neutrons
d) Protons

2007-01-02 07:28:29 · 8 answers · asked by Kristina 1

6, 8, 18, or 32

2007-01-02 07:25:54 · 7 answers · asked by Kristina 1

could i have the answer in Joules please? and also could you tell me hoe to do it?

2007-01-02 07:15:23 · 5 answers · asked by Anonymous

2007-01-02 07:02:54 · 4 answers · asked by Anonymous

2007-01-02 06:39:41 · 4 answers · asked by sexi 1

2007-01-02 06:35:11 · 7 answers · asked by blondi 1

What is the oxidation state of the individual atoms which make yp a molecule of HCI

A. Hydrogen has a negative oxidation state and chlorine has a positive oxidation state.

B. Chlorine has a negative oxidation state and hydrogen has a positive oxidation state

C. Both hydrogen and chlorine have a zero oxidation state.



Determine which of the following statements is true about the electrical potential for various voltaic cells.

A. The electrical potentail for an Au-Cr cell would be greater thatn the electrical potential of a Zn-Cu cell

B. The electrical potenial for an Zn-Ag cell would be less than the electrical potential of Zn-Cu cell

C. The electrical potential for a Sn-Cu would be greater than the electrical potential of a Zn-Cu cell

D. All of these


A voltaic cell made up of Cr and Al produces the following half reactions Al(s) ---> Al3+ (aq) + 3 e- and Cr3+ (aq) + 3 e- ----> Cr(S)

What is the overall equation for the reaction?

2007-01-02 06:24:12 · 1 answers · asked by cetinnovations 1

2007-01-02 06:11:20 · 4 answers · asked by San Fran Kid 2

2007-01-02 05:33:13 · 7 answers · asked by Kat 1