Science & Mathematics - 19 November 2006

2006-11-19 09:35:14 · 5 answers · asked by god 2 in Mathematics

Can someone explain to me how to do Straight-weight Problems! I am doing chemistry and I can not figure it out. I just want someone to please break it down for me in a way I can understand it.... Thank you! I'll give you an example of the type of problems I am doing, but I am not asking for the answer just how to figure them out. Thank you!

How many grams of mercuric oxide are needed to produce 96 grams of oxygen?

How many liters of oxygen may be obtained by electrolysis of 900 grams of water?

What volume of sulfur dioxide is produced when 224 grams of sulfur are burned?

What weight of sulfuric acid must react with copper in order to produce 112 liters of sulfur dioxide? 490g

Thanks again!

2006-11-19 09:34:16 · 2 answers · asked by Anonymous in Chemistry

Triangle ABC, you have to find the perpendicular bisector of BC.

2006-11-19 09:33:14 · 4 answers · asked by Anonymous in Mathematics

2006-11-19 09:32:52 · 5 answers · asked by Anonymous in Chemistry

2006-11-19 09:31:52 · 16 answers · asked by Anonymous in Astronomy & Space

200m/s^2. Change it to k/hr^2

2006-11-19 09:30:20 · 5 answers · asked by Ha!! 2 in Mathematics

like 99ab? please help quick

2006-11-19 09:29:21 · 2 answers · asked by indiangirl!=D 3 in Mathematics

What is the sliding filament theory?

2006-11-19 09:27:27 · 2 answers · asked by petswodahs 1 in Biology

if we have 75, four-hundred pound men, running at 35 miles per hour, and one of these men accidently drops his frankfurter, slowing the speed of the group to 20 miles per hour for 1 minute,

what is the average speed of these men over a 10 mile course???

2006-11-19 09:26:11 · 2 answers · asked by bigschwinger 2 in Mathematics

2006-11-19 09:25:12 · 3 answers · asked by Anonymous in Physics

2006-11-19 09:24:12 · 12 answers · asked by Chris H 1 in Weather

can anyone give me a description of conversion of heating oil into electricity.

2006-11-19 09:22:45 · 5 answers · asked by Anonymous in Engineering

2006-11-19 09:22:31 · 11 answers · asked by beristainjessica 1 in Biology

what is its boiling and meltig point, # of neutrons and electrons,

2006-11-19 09:22:20 · 5 answers · asked by Anonymous in Chemistry

2006-11-19 09:21:44 · 3 answers · asked by gmp842 1 in Engineering

2006-11-19 09:20:48 · 52 answers · asked by birchlane2 1 in Other - Science

2006-11-19 09:19:10 · 14 answers · asked by i_heart_jake_ryan118 1 in Mathematics

I have 2 problems I'm a little stumped on. The first one is:

sin^3 θ cos θ - sin θ cos^3 θ = -1/4

I think I should probably use the sum and difference equations for this one, but I'm not sure.

My other problem is:

sec 4θ + 2 sin 4θ = 0

This is what I've come up with so far, but I think it's wrong:

(1/cos 4θ) + 2 sin 4θ = 0
2 sin 4θ/ cos 4θ = 0

so, 2 tan 4θ = 0

(that's what I have so far)

If anyone can help with either of these problems, I would be very apperciative!

Thanks for your help!

2006-11-19 09:18:35 · 3 answers · asked by kleeoh1 1 in Mathematics

^= exponents
X= variable
*=multiplication

2006-11-19 09:18:30 · 6 answers · asked by Anonymous in Mathematics

when you go from point A to point B with a speed of 4 km per hour, you get to point B 1 hour faster than when you move with a speed of 3 km per hour. Find the distance between A and B.

2006-11-19 09:17:11 · 4 answers · asked by Seira T 1 in Mathematics

earlier similar earthquakes have been know to create huge tsunamis in the past decade.

2006-11-19 09:16:08 · 2 answers · asked by ramon_zrt 2 in Earth Sciences & Geology

2006-11-19 09:15:55 · 4 answers · asked by magendie 1 in Mathematics

Which of the following molecules are IR active and why?
H2O, MeCN, Cl2, CH3Br

Is C triple bond C more likely to have a higher frequency than a C double bond C and again why?
(NOTE: Please answer thoroughly!! Thanks)

2006-11-19 09:14:21 · 2 answers · asked by saju_ahmed06 2 in Chemistry

2006-11-19 09:14:02 · 4 answers · asked by tuyabid 3 in Mathematics

In Leicestershire, feels like there's a major hurricane going on out there. The trees are bending, it's whistling loudly and my windows and doors are rattling! Admitedly my house is set quite high up but this seems worse than usual! Anywhere else in the UK like this?

2006-11-19 09:13:57 · 38 answers · asked by Anonymous in Weather

I am arguing with my partner about this, he thinks a donkey ranks up there, I say a pig is on the top 4 but a donkey is no where near!!

2006-11-19 09:13:52 · 12 answers · asked by Buffy 1 in Zoology

For homework, my teacher asked us to draw a molecular orbital diagram. He did not give us any specific details on what they are or how to draw one. Our textbook is completely void of any explanations that make any sense whatsoever. I was wondering if someone would take the time to help me out.

I AM NOT ASKING YOU TO DO MY HOMEWORK FOR ME, but just to help me out a little, explain what i am supposed to be doing so i can do my homework.

Any websites that you think would be helpful in explaining that would also be greatly appreciated.

2006-11-19 09:13:15 · 4 answers · asked by Anonymous in Chemistry

2006-11-19 09:13:12 · 12 answers · asked by allison 1 in Mathematics

Triangle ABC: A(0,7) B(-6,1) C(6, -5).
Does anyone know how to find the equation of the median of line BM? This is much appreciated.

2006-11-19 09:12:46 · 2 answers · asked by Anonymous in Mathematics

2006-11-19 09:11:57 · 9 answers · asked by fan_of_god03 1 in Geography