Science & Mathematics - 1 January 2007

We are doing a science project on how to tell the diff between salt and sugar w/o tasting. one way is to boil, freeze, and disolve. Does any one have any info on how to tell the diff or know of any web sites to research this on. thanks

2007-01-01 04:23:22 · 3 answers · asked by cutec030 1 in Chemistry

2007-01-01 04:22:20 · 2 answers · asked by dickie 1 in Weather

huh? not clued up here....
g.

2007-01-01 04:21:40 · 11 answers · asked by gmcn2003 2 in Parapsychology

after the price of an item was reduced by 39%, they sold for $76.25. what was the earlier price?

2007-01-01 04:08:15 · 10 answers · asked by iluvmymorgan 2 in Mathematics

2007-01-01 04:07:53 · 14 answers · asked by connie 1 in Astronomy & Space

2007-01-01 04:06:00 · 2 answers · asked by Anonymous in Biology

an item had an increase of 33 1/3%. To restore it to its original price, wat percent of the incresed price should be subtracted?

2007-01-01 04:05:21 · 4 answers · asked by iluvmymorgan 2 in Mathematics

Quadratic is used to decribe biological phenomenon. just help with one example.

2007-01-01 04:04:33 · 1 answers · asked by beamro 1 in Mathematics

As there a scientific reason for that ?

2007-01-01 04:04:19 · 3 answers · asked by citizen high 6 in Biology

2007-01-01 04:04:03 · 20 answers · asked by hotchocolate 2 in Zoology

2007-01-01 04:03:34 · 9 answers · asked by Zefram 2 in Weather

1. Solutions of potassium hydroxide and propanoic acid are mixed

This is all i have so far: KOH + C3H6O2
i believe the potassium hydroxide breaks up right? into K+ OH-

2.A solution of iron (11) chloride is added to an acidified solution of sodium dicrhromate

this is what i have so far: FeCl2 + Na2Cr2O7

(all the numbers are SUBSCRIPTS!)

thanx!!

2007-01-01 04:00:59 · 3 answers · asked by trakstar16 1 in Chemistry

2007-01-01 03:58:52 · 3 answers · asked by venkateswaran r 1 in Engineering

2007-01-01 03:58:10 · 9 answers · asked by Nina Powers 1 in Other - Science

i am a dull child

2007-01-01 03:54:24 · 6 answers · asked by anonymous 1 in Mathematics

2007-01-01 03:52:02 · 1 answers · asked by mohamed a 1 in Earth Sciences & Geology

2007-01-01 03:50:15 · 10 answers · asked by 00 1 in Biology

Can you help me identify this spider? I have pictures of the ventral and dorsal sides, but the pictures are pretty awful. It was found in South Texas, about 90 minutes inland from the Gulf of Mexico, about 1 hour north of the Mexico/U.S. border, near an agricultural field, about 50m from water (irrigation canal) in October. I'm just curious, really. I think it's a beautiful little beast. Scale is difficult in the photos, but I think its diameter was (very roughly) 1cm.

Links to pics:

http://www.bobbyfiend.com/cpg/albums/advntrs/sotex/051015_ne_of_home/spider3.jpg

http://www.bobbyfiend.com/cpg/albums/advntrs/sotex/051015_ne_of_home/spider6.jpg

2007-01-01 03:48:19 · 3 answers · asked by bobbyfiend 1 in Zoology

2007-01-01 03:47:43 · 4 answers · asked by elpmis 1 in Geography

2007-01-01 03:42:01 · 11 answers · asked by obelix 2 in Biology

When they rotate,it causes seasons by being farther from the sun,which makes it winter or just colder.If it is closer it is summer or just hotter. Being farther also helps it become spring and fall.It becomes night time because when the planets are rotating,they go to the moon and when they move away,they go to the sun and make it day time and that is why here is 24 hours in a day because it takes 24 hours to get back to the moon.You can't feel the earth moving.

2007-01-01 03:39:44 · 14 answers · asked by Darrah 1 in Astronomy & Space

Are they anode, cathode.surface area and medium (air, water,etc.)

2007-01-01 03:39:04 · 4 answers · asked by Rivo 1 in Engineering

2007-01-01 03:39:01 · 4 answers · asked by kerryman 2 in Astronomy & Space

2007-01-01 03:38:56 · 21 answers · asked by Anonymous in Astronomy & Space

What transformation process is involved in layman's terms?

2007-01-01 03:36:42 · 2 answers · asked by Vince 2 in Chemistry

2007-01-01 03:31:50 · 6 answers · asked by Roomy 1 in Chemistry

2007-01-01 03:31:21 · 19 answers · asked by Zefram 2 in Biology

2007-01-01 03:29:47 · 6 answers · asked by terrydhama 2 in Physics

what is the sine wave and freqency at a given r.p.m...hear is some help,the freqency is govend by the number of poles in the alternator and the r.p.m,the rotor is the moving part with the poles on it,the poles are shaped like saw teeth say 12 in all,...the stater is the part that does not move,but gives volage and current output the windings on this are square in shape,i have always thought this is the sine wave genarated,the alternator output will be a.c voltage as the rectifying diodes will be disconected,the question applies to any car alternator

2007-01-01 03:29:37 · 7 answers · asked by tugboat 4 in Engineering

what is the definition for genes that alter the effect of other genes, cost to a population for having inferior or lethal alleles, enzymes controlle by different alleles, and help with these would be GREATLY APPRECIATED....please any websites or any answers would help so much

2007-01-01 03:28:38 · 3 answers · asked by dude 1 in Biology