Science & Mathematics - 12 July 2007

2007-07-12 08:49:48 · 4 answers · asked by peaches 1 in Mathematics

name the produt and type reaction for in eact case ?????

thanx :)

2007-07-12 08:42:22 · 2 answers · asked by DODO 1 in Chemistry

How do I identify the name of a gem if I don't know what it is called?

2007-07-12 08:42:01 · 6 answers · asked by :) 3 in Botany

also what does (triangle) H mean?


and Rocket Fuel is rated as energy per weight of fuel. Which would be better rocket fuel H2, gasoline, or glucose.

2007-07-12 08:40:27 · 4 answers · asked by Ritha 1 in Chemistry

I know there is a "wind chill" factor, but what do you call it when it's hot and then feels hotter when the wind blows? It sounds crazy, but if you've been to any desert when it's over 110 degrees, you know what I mean.

2007-07-12 08:40:07 · 5 answers · asked by Red 2 in Weather

like when mad or happy or sad, like dogs say bark cow go moo;; what do hippo's say/make?

2007-07-12 08:36:56 · 4 answers · asked by Ariel S 1 in Zoology

a) very few organisms were preserved as fossils
b) organisms tend to decay before becoming a fossil
c) animals with hard parts are preserved more easily
d) geological processes may destroy fossils
e) all of these

2007-07-12 08:36:25 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-07-12 08:35:57 · 4 answers · asked by mellybelly627 1 in Astronomy & Space

I need to find out where the gem rose quartz comes from. Does anyone have any good gem-identifying website? that could REALLY help me...
thanks

2007-07-12 08:35:04 · 11 answers · asked by :) 3 in Earth Sciences & Geology

2007-07-12 08:34:43 · 11 answers · asked by ... 3 in Earth Sciences & Geology

2007-07-12 08:33:42 · 4 answers · asked by peaches 1 in Mathematics

A teacher of mathematics used an unconventional method to measure time for a test lasting 15 minutes. He used just a sand-glass, which spills in 7 minutes and a second sand-glass, which spills in 11 minutes. During the whole time he turned sand-glasses only 3 times. Explain how the teacher measured 15 minutes.

2007-07-12 08:31:00 · 4 answers · asked by Witchblade_1 2 in Mathematics

I think if there's anything useful to memorize, it is the periodic table. I'd like to be able to talk about elements which are Alkalis · Alkaline earths · Lanthanides · Actinides · Transition metals · Poor metals · Metalloids · Nonmetals · Halogens · Noble gases. Any clues how to go to about it? I tried making Mnemonics but then I can't come up with words that make sense make pertain to the periodic table.
I'd love to be a nerd about Chemistry and not have to look up the table to solve problems.

2007-07-12 08:27:51 · 8 answers · asked by Eva Selena 2 in Chemistry

I just read how they found an almost fully preserved Wolly Mammoth in Siberia, and thought it would be awsome if they could somehow reintroduce them to the wild someday.

2007-07-12 08:26:41 · 7 answers · asked by hexum23 2 in Biology

when I went over the Clee hill it was fog, to my way of thinking

2007-07-12 08:26:03 · 14 answers · asked by Anonymous in Weather

Solve the system of equations using any method.
4x + y = 109
3x - y = 17

2007-07-12 08:25:03 · 4 answers · asked by Anonymous in Mathematics

Show that, even if G is not finite, the set of left cosets of H in G is in 1-1 correspondence with the set of right cosets of H in G. (Hint: correspond the inverse of Ha to aH)

2007-07-12 08:23:58 · 2 answers · asked by Anonymous in Mathematics

Solve the system of equations using any method.
9x - 16y = 713
19x - 10y = 887

2007-07-12 08:23:30 · 5 answers · asked by Anonymous in Mathematics

2007-07-12 08:22:59 · 5 answers · asked by Stephanie K 1 in Chemistry

Solve the system of equations using any method.
4x + 15y = 344
x - 13y = -316

2007-07-12 08:22:05 · 4 answers · asked by Anonymous in Mathematics

2007-07-12 08:20:49 · 2 answers · asked by Bud 1 in Engineering

Solve the system of equations using any method.
5x - 12y = 207
5x - 11y = 206

2007-07-12 08:20:46 · 5 answers · asked by Anonymous in Mathematics

The abscissa of a point is 2/5 of its ordinate, find the point if it is 5 units from (-2,2)

2007-07-12 08:18:48 · 1 answers · asked by sweet_candy 2 in Mathematics

2007-07-12 08:08:44 · 11 answers · asked by Suvankar D 1 in Astronomy & Space

2007-07-12 08:08:44 · 7 answers · asked by Damski007 2 in Physics

the reflection of sunlight off dark material? Shepherd Satellites? Absorption of Sunlight? Gravitational resonances with mimas?

2007-07-12 08:04:59 · 3 answers · asked by Girl 3 in Astronomy & Space

2007-07-12 08:04:57 · 7 answers · asked by thecookfamily00 1 in Mathematics

a) Alexander
b) Floodtl
c) Dr H
d) BekkiB
e) Some other troll

2007-07-12 08:00:20 · 7 answers · asked by Anonymous in Physics

I have been working this problem for a while and I know there must be a better way of finding the answer than I have been trying. Please help? Will you show me how to get the answer?

The question is [find the remainder when 7 to the hundredth power is divided by 9].

2007-07-12 07:59:43 · 6 answers · asked by Libby 5 in Mathematics

49- 1/121s^2

&

s^2 - 1/16

Fractions are the absolute worst for me...

2007-07-12 07:59:34 · 4 answers · asked by Anonymous in Mathematics