Science & Mathematics - 10 September 2006

2006-09-10 11:47:45 · 10 answers · asked by Anonymous in Physics

I read these question from my textbook( trying to learn something new , not homework) but i don't know anything about them, help me out ok?
1> What gas fills the bubles that are released from the ALkaSeltzer tablet?

2> Is it possible, when baking, to abserve both chemical and physical changes? Provide and example.

3>Will an unlimited amount of Kool_aid mix dissolv in the given volume of water?

2006-09-10 11:42:54 · 5 answers · asked by Red Eye 2 in Other - Science

Im only aloud to use 6 nines to make the numbers 20 - 30

you must you all six of them you may addition subtractin muliplication division and sqaure root.

2006-09-10 11:36:23 · 3 answers · asked by Anonymous in Mathematics

oinking is a good reason ive heard?!

2006-09-10 11:36:22 · 19 answers · asked by ? 4 in Other - Science

2006-09-10 11:36:20 · 6 answers · asked by alpu 1 in Medicine

my 7 y.o. twin boys are curious about it,

2006-09-10 11:35:04 · 31 answers · asked by rache0116 3 in Astronomy & Space

2006-09-10 11:33:06 · 18 answers · asked by Anonymous in Mathematics

Is yellow worse then white? What does it mean? I have running nose for 2 days straight and each morning when I wake up, today my throat starts to hurt when I swallow. HELP!!

2006-09-10 11:27:13 · 19 answers · asked by Anonymous in Medicine

please include the website of your source

2006-09-10 11:19:03 · 2 answers · asked by mj45 2 in Chemistry

like HCI
KCIO3
HOW DO YOU KNOW NAME OF ALL THE FROMULAS

2006-09-10 11:15:03 · 5 answers · asked by isha 1 in Chemistry

2006-09-10 11:14:19 · 9 answers · asked by Sadie xo3 1 in Earth Sciences & Geology

procedure:
1. add a small sample of NaCI to 5 ml of water in a t.t shake the content of the tube

2. using a dropper, add 5 drops of silver nitrate to the salt water solution

3. obtain a 2cm piece of Mg RIBBON, ROLL IT UP AND PLACE IN A T.T. ADD ADDITIONAL HCI untill all of the mg ribbon is gone.



can you tell me observation and physical, chemical changes

2006-09-10 11:12:57 · 3 answers · asked by isha 1 in Chemistry

Solve the system by addition.
–5x + 2y = 10
x – 3y = 11

2006-09-10 11:07:58 · 12 answers · asked by pjaxdriver13 1 in Mathematics

i've been experimenting with cross breeding flowers. Anyone have a simple way?

2006-09-10 11:06:37 · 6 answers · asked by Villain 6 in Botany

2006-09-10 11:04:50 · 2 answers · asked by Anonymous in Biology

HCI
AgNO3
KCIO3
HNO3
NaCI
CuSO4

2006-09-10 11:03:35 · 6 answers · asked by isha 1 in Chemistry

2006-09-10 11:02:25 · 4 answers · asked by rocks 1 in Biology

of the God of the Bible?

2006-09-10 11:00:34 · 6 answers · asked by curious_inquisitor 1 in Physics

okay. i did a lab in chemistry where i have to find the optimum volume of the percipitate. i found it, but now i have to convert it to a mole ratio. how do i do that? btw, we did two experiments.
Here are the optimum volumes of the percipitate and the reactants as well:
Fe(NO3)3 & NaOH: 14.2 mL Fe(NO3)3, 46.8 mL NaOH ;; 19.8 mL of precipitate [Fe(OH)3].
CuCl2 & Na3PO4: 34 mL CuCl2, 26 mL Na3PO4 ;; 31.0 mL precipitate [Cu3(PO4)2]

so now what do i do? i can't do anything since everything is in like mL and so... i'm kind of stuck. this is due tomorrow, so please help me ASAP. thank you so much! :]
P.S. Please show the steps otherwise i'd get confused and lost... thanks! And btw, you're supposed to find the stoichiometric mole ratio for each reaction and then the chemical equation. X]

PLEASE PLEASE PLEASE. i am seriously desparate now. T_T

2006-09-10 10:59:06 · 2 answers · asked by sooper mouse! 2 in Chemistry

Which one of these statements about the Bohr's Model of the atom is incorrect? (I think that the answer is C am I right?)

a) Electrons fill lower energy orbits first
b) The great the quantum number the higher the energy of the orbit.
c) Electrons occupy orbits with certain radii corresponding to discrete energies.
d) Elements with the same number of electrons in their outer orbits have similar properties.
e) All of these statments are correct.

2006-09-10 10:56:41 · 8 answers · asked by Cali 1 in Chemistry

But I cannot stop thinking about him. I fantasize about him, I fantasize about other handsome man chasing me in his office and he sees that .... etc. How can I stop it ?

2006-09-10 10:56:36 · 13 answers · asked by Natalia P 1 in Medicine

... or can a theory (like the theory of relativity) be based on pure conjecture?

2006-09-10 10:51:45 · 15 answers · asked by Anonymous in Physics

2006-09-10 10:50:40 · 12 answers · asked by angela c 1 in Weather

Small tank is a feeder, birds drink and level lowers. I want to connect feeder to a larger tank for capacity reasons and have connected the two via a tube from the top of the feeder to the larger container. Normally feeder is filled, top is screwed on then turned over, liquid does not pour our but just sits in the feeder but when I connect them the water just pours out of the feeder. Is this an issue that there can be no air between the feeder and the top level of the liquid, and no air must come in, or is it just that the weight of the water is too much to sustain the system?

2006-09-10 10:49:14 · 5 answers · asked by Anonymous in Physics

At what concentration (preferably in % volume) would the diruretic effect of alchohol be balanced by the increase in water intake in a beverage? Weak American beer seems to dehydrate so how much lower would the alcohol content have to be to avoid that?

2006-09-10 10:47:24 · 2 answers · asked by Scott L 5 in Medicine

2006-09-10 10:46:20 · 2 answers · asked by Anonymous in Other - Science

each week we get a problem of the week in math for the weekend, i usually get them after a couple minutes, but i've tried for like a reeeeeally long time and i still cant figure it out. can anyone help me??

Makin' Tracks:
A pedestrain is three-eighths of the way across the bridge when he hears a train coming from behind. If he runs as fast as possible back toward the train, he will get off the bridge just in time to avoid a collision. Also, if he runs as fast as possible away from the train, he will get off the bridge just in time to avoid a collision. the train is traveling at 60 miles per hour. How fast can the person run?

2006-09-10 10:45:27 · 4 answers · asked by mmkay 2 in Mathematics

2006-09-10 10:41:24 · 6 answers · asked by Anonymous in Biology

Find the y-intercept.
–x + 3y = 15

A) (5, 0) B) (0, –15) C) (0, 5) D) (–15, 0)

2006-09-10 10:40:43 · 6 answers · asked by pjaxdriver13 1 in Mathematics

2006-09-10 10:40:29 · 7 answers · asked by macaaront 1 in Mathematics