Chemistry - February 2007

2007-02-07 10:09:28 · 1 answers · asked by EasY 1

half a dime?
the lone rangers horse?
not fat?
a distributor or traffic tickets?

2007-02-07 10:08:16 · 1 answers · asked by chichi 1

2AlBr ---> 3Br + 2Al
what type of chemical reaction does this represent? decomposition? and....

Fe(NO3)3 + 3 NaOH ---> 3 NaNO3 +Fe(OH)3

the choices are...
synthesis... A+B ---> AB
decomp... AB --> A+B
single... A+BC ---> AC+B
double... AB +CD ---> AD + CB
thanks in advance

2007-02-07 10:07:12 · 2 answers · asked by fivefootone 2

1. A 1cm. cube of Fe reacting with 50ml. of 1M HCL producing hydrogen at a rate of 1ml. per sec.
or A 1cm. cube of Mg reacting with 50ml. of 1 M HCL producing hydrogen at a rate of 5 ml. per sec.

2007-02-07 10:03:45 · 2 answers · asked by Anonymous

2007-02-07 10:02:12 · 5 answers · asked by kachilous_2002 1

2007-02-07 09:59:59 · 2 answers · asked by EasY 1

Im trying to understand the phase diagram but i don't see how pressure makes it easier for a substance to expand.

2007-02-07 09:58:52 · 2 answers · asked by tired 1

2007-02-07 09:58:16 · 1 answers · asked by Brian S 2

A 2.65 g sample of a salmon-colored powder contains 0.70 g of chromium, 0.65 g of sulfur, and 1.30 g of oxygen. Its molar mass is 392.2 g. What is the molecular formula for the compund?

Can someone elxplain to me how to do it and what the answer is? It would help me TONS!

Thanks :)

2007-02-07 09:55:38 · 1 answers · asked by nicole :) 1

Give 3 reasons why eastern Canada is more affected by acid percipitation then western Canada. How might increased acidity levelss affect the economy of eastern canada? consider tourism, factories and taxes.

2007-02-07 09:54:02 · 1 answers · asked by Cutie 4

Suppose you have 2 containers, 1 containing a dilute acid and the other a dilute base, but threre are no labels on them. describe how you could use red cabbage to determine which solution is which.

2007-02-07 09:51:51 · 1 answers · asked by Cutie 4

involved in each kind of change.

2007-02-07 09:47:51 · 1 answers · asked by amy 1

Can you give me some examples of chemical reactions inside a home setting?
Thanks ;]

2007-02-07 09:45:10 · 9 answers · asked by Anonymous

hi there ,to sintetize sulfuric acid out of sulfure by oxidation you need a good catalizer like O5V2.I were unable to get it ,but I have got a lingot of pure vanadium.Can someone tell me were to buy this product or an easy way to oxide it to its pentoxide.
The sulfuric acid has many uses as a catalicer in many reactions ,I'll use it with comon sense (no bad intentions really).
thanks for the information!!

2007-02-07 09:41:36 · 1 answers · asked by pioltu 1

Rank the following compounds in order of increasing boiling points, and describe the intermolecular forces which affect the ranking.

a. H2Se
b. H2S
c. H2Te

2007-02-07 09:32:36 · 3 answers · asked by wi1dw00ly 1

If the rate of reaction, A+B+C => D+E doesnt depend on the concentration of C what does this tell about the reaction mechanism?

2007-02-07 09:19:03 · 3 answers · asked by Anonymous

2007-02-07 09:15:56 · 2 answers · asked by EasY 1

2007-02-07 09:11:13 · 2 answers · asked by EasY 1

So basically i accidentaly mixed some chemicals in chem class and i was wonderin wat i had made. It was some NH4 and a little bit of AgNo3 (not sure the concentrations) I ended up with a really strong smell that almost smelled like dry erase board markers and it gave me a headache for little while. We were using phenolpthalene in the NH4 and the AgNO3 turned it from a pink to a cream pinkish color...im not too sure wat it had come out to be though or if it was deadly or anything...i was just curious

2007-02-07 09:09:54 · 1 answers · asked by Anonymous

can anyone tell me what a limited reaction/reagent is?

2007-02-07 09:06:02 · 4 answers · asked by Anonymous

i need to know for some home work i am doing

2007-02-07 09:03:55 · 7 answers · asked by Keagan t 1

I read on Wikipedia:

'Typically, kerosene directly distilled from crude oil requires some treatment, either in a Merox unit or a hydrotreater, to reduce its sulfur content and its corrosiveness.'

Now, that reads to me like distilled crude oil kersosene has some corrosive properties. But that doesn't make sense! It could be a bit of a pain in metal fuel tanks!!!! Please, someone set me straight.

2007-02-07 09:01:45 · 10 answers · asked by Ben M 2

2007-02-07 08:48:57 · 6 answers · asked by Marty N 2

Why or why not? What are the substances that make chocolate milk or other drinks stain teeth?

2007-02-07 08:42:56 · 2 answers · asked by unknown 1

Define the following terms :

1) Conductivity
2) Melting point

2007-02-07 08:20:02 · 4 answers · asked by Anonymous

2007-02-07 07:35:56 · 3 answers · asked by Luda 1

How does it work? I understand i seperates the particles of hydrogen and oxygen, but what do I need to actually perform the task? Can I do it with household objects?

2007-02-07 07:31:50 · 2 answers · asked by uncletoon2005 3

also maybe distill hemp seed/sunflow seed oils and mix that with the distilled vinegar as a sought of deisel? AND. if you have a contained ceramic vesel with internal tunnels in it you can use microwaves to boil water and have a microwave steam engine. using gearing and a generator attached you can store the energy used by the steam engine to generate the electricity for the microwave production.

2007-02-07 07:16:13 · 10 answers · asked by LOZZA D 1

compare its mechanical properties with reference to its microstructure.

2007-02-07 06:15:58 · 1 answers · asked by shashi 1

Hi, really need to know this, thanks!

2007-02-07 06:11:58 · 2 answers · asked by Anonymous