Science & Mathematics - 3 January 2007

tell? links? please?

2007-01-03 13:44:14 · 3 answers · asked by Anonymous in Chemistry

The electron configurations in this compoound are the same as the electron configurations of atoms in group 14, 17, 18, or 1?

2007-01-03 13:44:00 · 2 answers · asked by Anonymous in Chemistry

2007-01-03 13:43:48 · 17 answers · asked by abdul_momin22 1 in Physics

A 250 ml sample of oxygen is collected over water at 25degrees celcius and 760 torr pressure. What is the pressure of the dry gas alone? (Vapor pressure of water at 25 =23.8 torr)

Well this is the problem. What do I do to solve this exactly?

2007-01-03 13:42:27 · 2 answers · asked by epooji 3 in Chemistry

Covalent or ionic

and are electrons shared of trasferred?

2007-01-03 13:42:06 · 3 answers · asked by Anonymous in Chemistry

its for my science class

2007-01-03 13:41:02 · 4 answers · asked by Anonymous in Botany

2007-01-03 13:40:43 · 15 answers · asked by NICKI L 1 in Astronomy & Space

ok so... this is the actual question from my book:
Look at the chemical formulas for vinegar(HC2H3O2) and ammonia(NH4OH). What part of each formula identifies each substance as an acid or base?
acid: base:

ok thanx
love to all
k

2007-01-03 13:39:30 · 3 answers · asked by cowboizgrl 1 in Chemistry

2007-01-03 13:39:28 · 9 answers · asked by Kristen 1 in Mathematics

2007-01-03 13:39:22 · 2 answers · asked by valerie j 1 in Engineering

Permanganate ion, ( MnO 4) - oxidizes SULFITE ions to SULFATE ion. The manganese (Mn) product depends on the pH of the reaction mixture. The mole ratio of oxidizing to reducing agent is 2 to 5 at pH 1 amd jas a ratop pf 2 to 1 at pH 13. For each of these cases please explain and write the balanced equation for that rxn. and indicate the oxidation states.


THANKS FOR YOUR HELP to THOSE WHO HELP
best answer will probably be chosen tomorrow

thank you

2007-01-03 13:38:50 · 1 answers · asked by chanti 3 in Chemistry

a) Ba & I
b) Br & CI
c) Li & I
d) K & CL

2007-01-03 13:38:34 · 2 answers · asked by Anonymous in Chemistry

2007-01-03 13:38:26 · 8 answers · asked by princess 1 in Astronomy & Space

How do i simplifiy 25(25^(1/4))?

2007-01-03 13:37:50 · 7 answers · asked by Neil P 2 in Mathematics

Hydrochloric acid (HCl) and sodium hydrogen sulfite
HCl and Copper (II) sulfate
sodium hydroxide and potassium chromate
potassium chromate and calcium chloride
" " and sodium hydrogen sulfite
" " and copper (II) sulfate
calcium chloride and sodium hydrogen sulfite
" " and copper (II) sulfate
sodium hydrogen sulfite and copper (II) sulfate

2007-01-03 13:36:31 · 2 answers · asked by googlybear 2 in Chemistry

the actual question
A 3 point jump shot is released 2.2 m above the ground, 5.97 m from the basket, which is 2.99 m high. For launch angles of 30° and 60°, find the speed needed to make the basket.

2007-01-03 13:35:55 · 1 answers · asked by Cameron F 1 in Physics

2007-01-03 13:32:51 · 4 answers · asked by jessica 1 in Chemistry

Why?

2007-01-03 13:32:11 · 7 answers · asked by Mark K 6 in Astronomy & Space

1. Has a light blue cover.
2. please tell me numbers 10-34.
3. go to page 154-157.

2007-01-03 13:31:51 · 2 answers · asked by charmedfairy74 1 in Mathematics

IDENTIFY A CHEMICAL SPECIES:: that is

a) capable of oxidizing Cl - under standard conditions.
and
b) capable of reducing Cl - under standard conditions.

2007-01-03 13:31:50 · 2 answers · asked by chanti 3 in Chemistry

after it was placed into water it became 5.2g more, but now it became -1.4g after 10%sugar -3.1g and after 15% sugar -4.6g.
Please help in this.. this biology stuff is complicated!

2007-01-03 13:31:04 · 2 answers · asked by B-Ron 1 in Biology

I have worked it out for a Calculus problem, but I am unsure about whether or not my answer is correct. I found that, for an equilateral triangle with each side a length "b", the height of the triangle is h = (sqrt(3)/2)b; thus, the area is A = .5 b h = (sqrt(3)/4)b^2 (or .25 *sqrt(3) * b^2). Is this correct?

2007-01-03 13:28:46 · 10 answers · asked by infinitys_7th 2 in Mathematics

is it 7,24,25 and 18, 24, 30

2007-01-03 13:27:24 · 10 answers · asked by Chris FIGggggg 1 in Mathematics

if L is in m and T is in degrees C

2007-01-03 13:27:03 · 3 answers · asked by bippidibopiddi 2 in Physics

which of the following phrases best described the bond between these elements?

mostly covalent/ionic in character and formed between a meet and one/two nonmetals

2007-01-03 13:26:29 · 3 answers · asked by Anonymous in Chemistry

2007-01-03 13:25:59 · 7 answers · asked by S 3 in Mathematics

i want to know(anything yet discovered)

2007-01-03 13:24:42 · 5 answers · asked by Anonymous in Other - Science

2007-01-03 13:24:16 · 10 answers · asked by tweety b 1 in Mathematics

How many moles is 1.50 x 10^23 molecules NH( subscript )3.

2007-01-03 13:23:57 · 3 answers · asked by Anonymous in Chemistry

i can only find 3 directions xyz time and texture... does anyone know? im very curious.

2007-01-03 13:23:03 · 2 answers · asked by Anonymous in Other - Science