Science & Mathematics - 14 October 2007

2007-10-14 15:21:41 · 3 answers · asked by Anonymous in Botany

My eqaution was

(Mn^+2) + (NaBiO3) -> (Bi^+3) + (MnO4^-1)

if i were to balance this equation where would the Sodium go?
It does not have a Sodium on the other side. how would i balance this?
Please help.
Thank you.

2007-10-14 15:20:20 · 1 answers · asked by Jiwoo S 1 in Chemistry

2007-10-14 15:17:28 · 9 answers · asked by Anonymous in Mathematics

How would you solve
2a + c = -10
b - c = 15
a - 2b + c = -5 ??

2007-10-14 15:17:10 · 1 answers · asked by Anonymous in Mathematics

1/3 (c+1) = 1/6(3c - 5)

1/4(5 - 2h) = h/2

2007-10-14 15:16:03 · 2 answers · asked by Anonymous in Mathematics

no specific heat?
a low specific heat?
a high specific heat?

2007-10-14 15:15:05 · 2 answers · asked by Anonymous in Weather

2007-10-14 15:15:00 · 1 answers · asked by judykharrison 1 in Mathematics

2007-10-14 15:14:51 · 7 answers · asked by olam S 1 in Astronomy & Space

dude...they need to get over themselves...

God created earth

durr

soo...the whole theory is that some chemicals collided and BANG here we are

where'd the chemicals come from?

cough cough

comments


(I'm a christian)

2007-10-14 15:14:48 · 19 answers · asked by ;) 1 in Astronomy & Space

2007-10-14 15:13:01 · 3 answers · asked by Terri L 2 in Biology

I'm totally serious. I just finished watching the Little Mermaid, and I'm really curious now.

2007-10-14 15:12:44 · 4 answers · asked by Björn M 1 in Biology

2007-10-14 15:11:00 · 3 answers · asked by Terri L 2 in Biology

Consider a hypothetical species "HeH". What charge, if any, should be present on this combination of atoms to produce the most stable or ion possible?

1. None of these
2. -.5
3. +.5
4. -1
5. +1

If the charge on this species were increased or decreased by one, what would be the effect on the bond order in the molecule?

Choices: increase by .5, increase by 2, increase by 1, decrease by 1, decrease by .5

Which of the following species possesses a delocalized bond?

1. No molecule here
2. NO3-
3. NCl3
4. H2S
5. H2O

2007-10-14 15:10:13 · 1 answers · asked by beehappinow 1 in Chemistry

2007-10-14 15:09:50 · 4 answers · asked by Terri L 2 in Biology

2007-10-14 15:09:03 · 1 answers · asked by Terri L 2 in Biology

solve for x,
do
-2500 minus 4.05x
what is x

other words do -2500 - 4.05 * something to get 0

2007-10-14 15:08:36 · 5 answers · asked by pumacat 1 in Mathematics

2007-10-14 15:06:14 · 10 answers · asked by Anonymous in Paranormal Phenomena

2007-10-14 15:03:28 · 3 answers · asked by nancy c 1 in Physics

Is diatomaceous earth (Diatomite) toxic to people/children/pets? Is it a good pest control for fleas in the house?

2007-10-14 15:01:38 · 5 answers · asked by kiko 3 in Earth Sciences & Geology

is the partial pressure of oxygen(in torr)?

a. 35
b. 155.4
c. 585.2
d. 740.7
e. 352.6

2007-10-14 15:00:26 · 1 answers · asked by tessababy992006 1 in Chemistry

2007-10-14 14:57:25 · 2 answers · asked by JAMES 4 in Engineering

2007-10-14 14:56:54 · 4 answers · asked by Navin K 1 in Astronomy & Space

2007-10-14 14:55:15 · 8 answers · asked by dr.whooo 2 in Mathematics

how do you simplify 1(-x) to the 5th power
whats the answer and how do you get it
thanks so much :]

2007-10-14 14:55:13 · 3 answers · asked by Anonymous in Mathematics

A solution is prepared by dissolving 13.2 grams of Ba(OH)2* 8 H2O in 275 mL of aqueous solution. Ba(OH)2* 8 H2O is water soluble and is a strong electrolyte. Calculate the OH- (aq) concentration (molarity) in the resulting solution.

Please explain how you do it. Thank you.

2007-10-14 14:52:49 · 1 answers · asked by Anonymous in Chemistry

I've been reading up on Intelligent falling and in the research I've done, I have yet to find a way to prove this scientific theory wrong.

Are you certain God isn't the source of gravity as opposed to a massive object being the cause? Provide any evidence you may have.

2007-10-14 14:50:28 · 4 answers · asked by Wire Tapped 6 in Physics

The length of a simple pendulum is 0.94 m and the mass of the particle )the Bob) at the end of the cable is 0.77 kg. The pendulum is pulled away from its equilibrium position by an angle of 8.6 degrees and released from rest. Assume that friction can be neglected and that the resulting oscillatory motion is simple harmonic motion.
A) What is the angular frequency of the motion
B) Using the position of the bob at its lowest point as the reference level, determine the total mechanical energy of the pendulum as it swings back and forth.
C) What is the bob's speed as it passes through the lowest point of the swing

2007-10-14 14:49:49 · 1 answers · asked by Anonymous in Physics

When 1.500 g of a metal oxide is heated, the compound decomposes in the reaction:

2X2O(s) ---> 4X(s) + O2(g)

If 0.1035 g O2 is produced, what is the identity of the unknown metal X?

2007-10-14 14:49:31 · 1 answers · asked by Guy B 1 in Chemistry

Decomposition of ammonium carbonate...

is it:
(NH4)2CO3 --> NH4 + CO3
(NH4)2CO3 --> NH3 + CO2 + CO1
(NH4)2CO3 --> NH4 + CO2 + CO1
(NH4)2CO3 --> NH3 + CO3

***at the end of the reaction there was nothing left in the test tube*****

also are these aqueous: calcium hydroxide & hydroxide

2007-10-14 14:49:29 · 1 answers · asked by holaaloha12345 4 in Chemistry

2007-10-14 14:48:06 · 4 answers · asked by Janie 2 in Mathematics