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Science & Mathematics - 16 July 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

Top 10 or 20 however many you know.

2007-07-16 16:14:48 · 9 answers · asked by Anonymous in Zoology

a- 5/18
b- 2/3
c- 8/11
d- 2

2007-07-16 16:06:27 · 11 answers · asked by Anonymous in Mathematics

I have a concern about sex with glasses. I think that it will create a hurdle at intercourse. It will create hurdle when I kiss her cheeks, her breasts and vagina. It will touch her body and will create a problem for me. To avoid such phenomenon I want to use contact lenses but they are potentially harmful because I have googled “contact lenses” and it is said that the most sophisticated lens are not safe and may damage your eyes. I don’t want to use either and want to get maximum not only at kissing her but to stare at her hot buttons without any foreign aid but if I don’t use my glasses at intercourse I wouldn’t be able to see clearly without it because it seems blurry when I don’t use glasses. Is there any such treatment which can recover my distorted eyesight.
Give me guidance.

2007-07-16 16:05:26 · 12 answers · asked by Anonymous in Medicine

No wiki "copy paste" answers... I want an explaination.. Like what is it, and what it does, or will do.. And how that will benefit us all..

2007-07-16 16:03:08 · 3 answers · asked by The_Cat_In_THe_HaT 1 in Biology

0

Two marbles are drawn from a bag containing 6 white, 4 red, and 6 green marbles. Find the Porbility of both marbles being white.

2007-07-16 16:00:25 · 5 answers · asked by °†¿ÐámñéÐ?†° 2 in Mathematics

For the decomposition of NaHCO3, estimate the temperature at which the total pressure of the gases above the solids is 1 atm.

2NaHCO3 (s) <--> Na2CO3(s) + H2O(g) + CO2(g)

Additional Details
5 hours ago
Answer is 393 K.

If possible, please show work.
35 minutes ago
We'd need enthalpies of formation and standard entropies for those substances. And are you sure it's the total pressure is 1 atm or the partial pressure of each gas?

The question is the exact wording of the book.

NaHCO3 (s)
dHf* = -950.8 kJ mol^-1
dGf* = -851 kJ mol^-1
S* = 102 J mol^-1 K^-1

Na2CO3 (s)
dHf* = -1131 kJ mol^-1
dGf* = -1044 kJ mol^-1
S* = 135.0 J^-1 mol^-1 K^-1

H20 (g)
dHf* = -241.8 kJ mol^-1
dGf* = -228.6 kJ mol^-1
S* = 188.7 J mol^-1 K^-1

CO2(g)
dHf* = -393.5 kJ mol^-1
dGf* = -394.4 kJ mol^-1
S* = 213.6 J mol^-1 K^-1

2007-07-16 15:56:39 · 1 answers · asked by Anonymous in Chemistry

Approximately...

2007-07-16 15:56:14 · 4 answers · asked by Cutie Pie 2 4 in Earth Sciences & Geology

a. What does it mean when a salt is soluble?
b. What is meant by insoluble?
c. Why are the terms soluble and insoluble very broad and not very accurate?

2007-07-16 15:53:44 · 2 answers · asked by mnkbtt10 3 in Chemistry

2007-07-16 15:52:25 · 6 answers · asked by Anonymous in Earth Sciences & Geology

2007-07-16 15:52:02 · 1 answers · asked by Anonymous in Medicine

2007-07-16 15:48:32 · 4 answers · asked by Lewis N 1 in Biology

Does anyone know any websites that talk about the most starry nights in a certain region? Note: I'm not talking about shooting stars, just stars. A lot of them.

2007-07-16 15:48:19 · 11 answers · asked by HAPPY <3 2 in Astronomy & Space

velocity

2007-07-16 15:47:32 · 4 answers · asked by Anonymous in Physics

Which of the following is the equation of a line in slope-intercept form with a slope o fnegative one-half that passes through the point(-2,4)?

2007-07-16 15:47:22 · 6 answers · asked by Anonymous in Mathematics

2007-07-16 15:42:03 · 6 answers · asked by Dunki Swann 1 in Mathematics

2007-07-16 15:38:42 · 1 answers · asked by mohamed_shukoor2000 2 in Astronomy & Space

Write the equation of a line perpendicular to the line 6x – 3y=10 and containing the point (-6, 2).

2007-07-16 15:38:38 · 3 answers · asked by Anonymous in Mathematics

Write the equation 2x+5y=15 in slope intercept form.

2007-07-16 15:28:46 · 6 answers · asked by Anonymous in Mathematics

A 400 g block of copper at a temperature of 75°C is dropped into 750 g of water at 23°C. The water is contained in a 100 g glass container. What is the final temperature of the mixture?

2007-07-16 15:28:07 · 1 answers · asked by makk 3 in Physics

2007-07-16 15:25:53 · 3 answers · asked by Brilliant Queen (BQ)_forever !!! 5 in Physics

2007-07-16 15:24:38 · 1 answers · asked by Anonymous in Mathematics

Given f(x)=3x+2, find f(5)
its either f(5)=1, f(5)=17, f(5)=5f, or f(5)=15x+10

2007-07-16 15:24:37 · 11 answers · asked by Anonymous in Mathematics

Of the students at eastlake high school, 288 ride a school bus. if the percent of students who ride the bus is 45%, then how many students attend eastlake altoghether? (its eaither 130, 333, 343, or 640)

2007-07-16 15:21:23 · 12 answers · asked by Anonymous in Mathematics

2007-07-16 15:19:51 · 3 answers · asked by Anonymous in Biology

i get confused between which one i should use, could someone explain to me the difference between the 2, and an example?

2007-07-16 15:19:04 · 3 answers · asked by what? 7 in Mathematics

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