Chemistry - October 2006

2006-10-04 07:28:45 · 8 answers · asked by beva 1

How can you combine the four molecules on the left to form the one on the right?

http://ca.blog.360.yahoo.com/blog-LDLB08k9fqL4u3yfbggy

2006-10-04 07:13:05 · 2 answers · asked by Hard Rocker 3

2006-10-04 06:47:59 · 19 answers · asked by Jed 1

Two identical electric kettles are switched on at the same time. A contains 1 litre of water,and kettle B contains 0.5 litre of water.in both kettles the temperature of water is 20 degree C.the water in kettle A takes longer to reach boiling point than the water in kettle B.why??

2006-10-04 06:46:32 · 3 answers · asked by aleX 1

2006-10-04 06:36:18 · 5 answers · asked by Anonymous

Potassium Iodide, Barium chloride, lithium Bromide, Iron(III) sulfate, Chrominum(III) sulfide, Calcium Carbonate, sodium acetate, cobalt(II) fluoride, sodium phosphide, tin(IV) oxide, gold(III) bromide, copper(II) iodide, stromium chloride, lithium acetate, magnbesium hydroxide, nickel(II) nitrate, silver oxide, zinc chloride, magnesium phospate. Thanks you for taking the time doing these.

2006-10-04 06:32:41 · 3 answers · asked by truckin_90 2

(a) What is the change in pH when [OH -] increases by a factor of ten?

(b) What is the change in [H3O+] when the pH decreases by four units?
does it decrease or increase and by what factor?

2006-10-04 06:31:57 · 5 answers · asked by mariah3785 1

2006-10-04 06:27:57 · 10 answers · asked by dr.vinod rajan 1

meth

2006-10-04 06:24:53 · 2 answers · asked by Anonymous

If you place a 1kg block of ice into a bucket of water at(20 degree Celsius,what might you expect the temperature of the water be:
a)after 5 mins?
b)the next day?

2006-10-04 06:20:07 · 4 answers · asked by aleX 1

What is a quark?

having to do with nuclear chemistry

2006-10-04 06:11:09 · 3 answers · asked by Rachel 2

3) Compare and contrast the three types of subatomic particles in terms of location in the atom, mass, and relative charge.

2006-10-04 05:54:11 · 4 answers · asked by Lion 1

2006-10-04 05:46:00 · 4 answers · asked by aleX 1

reacting acids with carbonates

2006-10-04 05:44:31 · 4 answers · asked by annie c 1

how to separate ZnO and CuO using a base?

2006-10-04 05:43:38 · 2 answers · asked by Anonymous

2006-10-04 05:20:20 · 2 answers · asked by Anonymous

Sometimes when I use my pots and pans, there are circular rainbow patterns in them. When I add water, the rainbow colors go away. What's going on?

2006-10-04 05:19:53 · 4 answers · asked by snowraider 3

2006-10-04 04:58:04 · 2 answers · asked by nailtech 1

I need to know all of the multivalent elements and their possible valences.

2006-10-04 04:55:14 · 6 answers · asked by Ronald S 1

2006-10-04 04:49:24 · 6 answers · asked by abh 2

2006-10-04 04:37:26 · 2 answers · asked by Jake C 1

2006-10-04 04:28:29 · 6 answers · asked by sura 1

2006-10-04 03:54:24 · 2 answers · asked by mien_ng 1

Amitriptyline is the generic of Elavil.

2006-10-04 03:53:24 · 6 answers · asked by nailtech 1

2006-10-04 03:48:38 · 1 answers · asked by Anonymous

2006-10-04 03:21:55 · 5 answers · asked by Aljeet 1

2006-10-04 03:09:03 · 14 answers · asked by Allergic To Eggs 6

(1) concentrated phosphoric acid is 85.0 % H3PO4 by mass. The density of the solution is 1.70 g/mL. What volume is required to provide 2.50 grams of H3PO4?
_________en.

(2) What is the maximum yeild of isopentylacetate that can be prepared from 3.58 g of isopentanol and 4.75 g of acetic acid?
___________________g.

2006-10-04 03:03:49 · 6 answers · asked by ibrakeforchucknorris 1

I have in mind a water recyling system, we have severe water supply shortages.
I plan to take the water from a commercialy available waste water treatment plant, pump it into a 200 litre holding tank, gravity feed for toilet flushing in the house.
To do this safely and meet governemt rules, i need to be sure of killing bacteria. I'd like to conserve power also, so it looks like UV light is the go, I have learned that the water needs to be at least 55 celcious for these to occur.
How many light globes are needed for no more then 50 litres per hour treatment? Is 55 degrese enough? Is Polyethylene a suitable material for UV lights.
I have in mind running the water through a container exposed to this light source before the 200L storage.
Thanks for you help with this, I have been weeks on it, and 5 mins here I have made some ground.

2006-10-04 02:48:26 · 4 answers · asked by Anonymous

it for this project in chemistry. i cant find the price of carbon in the internet!!! help!!!!

2006-10-04 01:29:14 · 3 answers · asked by pweetyinpink05 2