Chemistry - November 2006

I saw this formula for making hydrogen and it was mention water gas , never hear abbout it.. how I can make it?

2006-11-16 07:11:00 · 5 answers · asked by Spacekid 2

some possible products are Na2CO3, C, CO, O2,and H2

2006-11-16 07:09:33 · 3 answers · asked by freda d 1

does any one out there know about enzyme activity?... like the lock and key theory along with the induced - fit theory??

2006-11-16 07:08:13 · 1 answers · asked by Anonymous

if so can u please tell me the products obtained...

2006-11-16 07:06:45 · 2 answers · asked by meelu 2

Please fill in the gaps!

2006-11-16 06:59:16 · 5 answers · asked by S O 3

the alkali metals cesium (Cs) and rubidium (Rb) were discovered based on their characteristic flame colors. Cesium is named after the sky and rubidium after the gem color. what colors of light do you think these metals give off when heated in a flame?

2006-11-16 06:50:58 · 3 answers · asked by Anonymous

2006-11-16 06:47:13 · 1 answers · asked by Vartika J 1

A. They all demonstrate the chemical properties of carbon
B. They're all strong conductors of electricity
C. They're similar to transition elements
D. They're all metalloids

2006-11-16 06:41:35 · 3 answers · asked by JuggaletteCharm 2

For those of you that don't know it is another name for calcium hydroxide

2006-11-16 06:06:20 · 8 answers · asked by Anonymous

are emitted. How does their combined energy compare with the energy of the the single freq that would be emitted if the electron would have dropped from the 4th level directly to the 1st level?

2006-11-16 05:57:15 · 2 answers · asked by wildbutterflychick 2

Also... Out of those elements... which is the largest? And how can you tell???

2006-11-16 05:51:16 · 2 answers · asked by canneverhavethis111 1

It took me some while to register to yahoo so I would like a fast answer. I took old wine (could be two months or so), ~1,5dl that was left in the bottle and added water to boil rice. Now it should almost be finished but now I'm getting scared... Is there any risk for something toxic? Will ethanol decompose to methanol for example??
It is not uncommon to use wine in food preparation but now I'm getting nervous anyway...

2006-11-16 05:48:12 · 3 answers · asked by perslarsjerk 1

I need help with this problem.

2006-11-16 05:47:18 · 1 answers · asked by Deb R 1

how many grams of SO2 are needed to completely react with 64.00 g of O2 ?

2006-11-16 05:36:28 · 1 answers · asked by mimi 1

why does Oxygen, Carbon, Sodium, Sulphur, Iron, and Diamond have low or high boiling points, and can you explain this in terms of periodic trends and lattice structure.

2006-11-16 05:32:48 · 3 answers · asked by Anonymous

1) A very clumsy acting general
2) They are not here
3) A special head covering for your car
4) A giant in mythology
5) A very explosive army officer

There is no word bank and the answers in the periodic table

HELP!!!!!!
PLEASE!!!!!!!!!!

2006-11-16 05:32:28 · 1 answers · asked by Anonymous

2006-11-16 05:19:10 · 3 answers · asked by Robin D 1

2006-11-16 04:53:10 · 8 answers · asked by xjojox 1

This one is simple.
Everyone that travels by airplane knows that now it is impossible to travel with any liquid.

If it's so easy to produce such a substance why do we need a Liquid called Gasoline that comes from Oil to run our car engines?

2006-11-16 04:35:39 · 2 answers · asked by Mike P N 1

2006-11-16 04:26:53 · 3 answers · asked by cabo 1

10 cm3 portions were titrated against 0.1 mol dm3 concentration of hcl and 18.2cm3 of the acid were needed for neutralisation. calculate the number of moles of acid used in this reaction? what is the number of moles of sodium carbonate used in the titration? calculate the concentration of the sodium carbonate solution

2006-11-16 04:01:53 · 3 answers · asked by gybony05 1

2006-11-16 03:18:16 · 2 answers · asked by rachelpr24 2

2006-11-16 02:52:26 · 6 answers · asked by Anonymous

What is the easy way to remember lenghy chemistry question?If you know any tricks,please tell me.

2006-11-16 02:40:55 · 2 answers · asked by star123 2

Some people say that aluminum burners in a range can´t be melted in a normal use condition, there should be a "normal" condition were aluminum burners are melted.

2006-11-16 02:19:06 · 1 answers · asked by hao 1

A 1.2g sample of lye required 45cm3 of 0.5 moldm-3 HCl for neutralisation. Calculate the % by mass of NaOH in the Lye.

Question is how do I do this because i'm awful at maths.

2006-11-16 01:50:12 · 4 answers · asked by Anonymous

2006-11-16 01:38:58 · 3 answers · asked by kazzy1989 1

does it mean instant death?

2006-11-16 01:37:28 · 2 answers · asked by bartermcgee 2

I need to find some information on bubble gum for a science experiment on gum! HELP!!!!

2006-11-16 01:31:39 · 3 answers · asked by Cody S 1

2006-11-16 01:27:40 · 11 answers · asked by Jasmine M 1