Chemistry - August 2006

2006-08-23 23:12:21 · 10 answers · asked by great 1

2006-08-23 23:11:16 · 14 answers · asked by great 1

If you put two matches in a test tube and put a balloon over the top of the test and hold it over a bunsen burner the matches ignite letting off gas which goes into the balloon inflating it. How can modify it to
a) make the balloon inflate more and
b) Make the matches burn for longer period of time

2006-08-23 23:01:48 · 2 answers · asked by mascara_97 1

I don't know the very effect of temperature on pH when misure it with my pHmeter.

2006-08-23 21:53:39 · 7 answers · asked by tonja79 2

2006-08-23 21:42:24 · 15 answers · asked by will5 1

which is the metal that can melt even in 100 degree C. and the metal should have adequate strength in normal condition. please list the details of such metals

2006-08-23 21:17:35 · 8 answers · asked by ajith k 1

2006-08-23 21:02:24 · 13 answers · asked by tej 2

2006-08-23 20:50:54 · 11 answers · asked by will5 1

2006-08-23 20:48:04 · 2 answers · asked by shivani t 1

if you don't know the answer than can you just e-mail me the sites that will tell me.

2006-08-23 20:35:24 · 5 answers · asked by Anonymous

my heat control knob of my car broke and i used crazy glue to try fix it. unfortunately that didint work and now I have a bigger problem because the shaft which holds the knob doesn't turn-I gues glue trickled in and glued to something else...I managed to get the broken knob off the shaft but that didn't solve my problem.

2006-08-23 20:02:11 · 4 answers · asked by Anonymous

Ethyl acetate has a carbonyl stretching absorption in the infra-red spectrum at 1742 cm-1. What is the frequency of the vibrational transition in Hz? (speed of light, C = 300,000,000 m/s)?

2006-08-23 18:36:59 · 2 answers · asked by mymaly17 1

Hemoglobin.the oxygen carrier in blood, changes colour from red to purple on release of oxygen for which one of the following reasons?

2006-08-23 18:36:03 · 6 answers · asked by mymaly17 1

Why does the Orthorhombic crystal system have 3 different crystal types?
The Orthorhombic crystals have 3 axes at unequal lengths and faces at 90 deg angles. Why does this result in 3 different crystal types [dipyamid,prism, scalenohedron]? I think there should only be a single Orthorhombic crystal type as there is only the one, same set of axes? Obviously this is incorrect and I cannot see how the 3 axes at unequal lengths set produce three different crystals- all Orthorhombic. Any help is greatly appreciated.
Thank you

2006-08-23 17:58:38 · 2 answers · asked by Gideon 1

2006-08-23 17:10:55 · 1 answers · asked by linda 2

I know Diesel is not as flammable as gasoline, but what would it take to start a fire with diesel? If I threw a match into some Diesel fuel would it ignite?

2006-08-23 17:09:18 · 11 answers · asked by kjacobs3585 1

Also after analysing water some question that is likely to arise from ones lecture.

2006-08-23 16:21:30 · 6 answers · asked by iyke 1

i've got a summer project due tomorrow and i cant find help anywhere!

2006-08-23 15:51:24 · 2 answers · asked by ME 2

2006-08-23 15:41:39 · 2 answers · asked by Javier T 1

1. What causes Mold?
2. Why Does it have a Green color to it?
3. Why Does it feel like a sponge of some sort?
4. What is "Yeast"?

2006-08-23 14:57:41 · 7 answers · asked by Anonymous

Why do they not gain or lose electrons instead?

2006-08-23 14:06:52 · 7 answers · asked by Anonymous

2006-08-23 13:58:09 · 3 answers · asked by bosox3939 1

why ethyl alcohol is slightly soluble in some compounds?

2006-08-23 13:46:23 · 2 answers · asked by maymay eH 1

What volume of a liquid (in cm3) having a density of 1.48 g/cm3 is needed to supply 5.00 grams of the liquid?

2006-08-23 13:16:53 · 5 answers · asked by Anonymous

2006-08-23 13:09:27 · 2 answers · asked by fds d 1

Write an expression for the ionic product of water Kw

Write an expression for Kp in the following:

2NO2 -> N2O4

Write an expression for the equilibrium constant of the following reaction:

NO(g) + Br2(g) <--> NOBr(g).

What exactly is it asking for when it says, "write an expression," and how do I do it?

2006-08-23 12:49:45 · 2 answers · asked by RED MIST! 5

Determination of chlorine,magnissum,calssium,oxygen,total hardenees,PH (acidity),alkanility and biochemical matter,quick please.thanks.

2006-08-23 11:52:47 · 2 answers · asked by fatma m 2

2006-08-23 10:49:39 · 4 answers · asked by Anonymous

2006-08-23 10:45:09 · 9 answers · asked by Mortimer Pratchett 1

How do I calculate the approximate NaOH concentration of 4 grams of solid NaOH in 200 mL of water? (MW=40.00)

2006-08-23 10:44:24 · 4 answers · asked by thoughtfulo 1