Science & Mathematics - 18 October 2007

Identify the hybridization of the central atom for both

ClF5 and PO4-3


You give two answers here.
For example if the hybridization of the central atom for the first molecule or ion is sp3, and on the second is sp3d
you enter:
sp3 sp3d

NOTE the SINGLE SPACE between the answers.

Enter s first, e.g. sp3d NOT dsp3

2007-10-18 11:27:32 · 2 answers · asked by gotMUNCH 2 in Chemistry

Ok, so the sun in on one side of the earth at one given time, but the moon? I mean, today is daytime and I saw the moon, so how can the people on the other side of the world at that same time (it is night) see the moon if I can see it? I am seeing it in the night and the day, how can that be? Do they not see it? I am so confused.

2007-10-18 11:26:45 · 7 answers · asked by RearFace@18mo. 6 in Astronomy & Space

2007-10-18 11:24:00 · 1 answers · asked by pinkygirl m 3 in Earth Sciences & Geology

1. y= 2sin x-tan x

2. y= x sec x

2007-10-18 11:22:34 · 3 answers · asked by Anonymous in Mathematics

2007-10-18 11:20:55 · 9 answers · asked by sawmill_18 1 in Geography

It can't come from the lymphatic system as it's drainage/refuse. Nor the blood system for that just doesn't make sense and the blood seems too valuable.... So, does it come from the stomach? Well then it should taste of hydrochloric acid and it doesn't, it tastes of alkaline. So where's it come from?

2007-10-18 11:20:54 · 5 answers · asked by Anonymous in Biology

2007-10-18 11:19:51 · 9 answers · asked by Rebecca K 1 in Earth Sciences & Geology

Where does the air into the carburetor comes from? For a naturally aspirated system,air will pass to the air filter and goes into the carburetor, but then what governs the velocity of the air?

2007-10-18 11:12:33 · 2 answers · asked by eddy1234 1 in Engineering

x(7-x)>8 a.2 b.8 c.-1 d.0

and could you please show me how to do it?

2007-10-18 11:06:37 · 6 answers · asked by Anonymous in Mathematics

2007-10-18 11:03:20 · 1 answers · asked by Gregory B 1 in Chemistry

What are 3 important resources that come from the ocean? Can't be minerals. No Water, or food.

2007-10-18 11:02:17 · 1 answers · asked by Anonymous in Earth Sciences & Geology

Only four. And if you have the answer I would like a website to see it.

2007-10-18 11:01:12 · 1 answers · asked by danielledear 1 in Chemistry

2007-10-18 11:01:09 · 3 answers · asked by lexi 2 in Geography

S is a frustum of a right circular cone with height h, base radius R, and top radius r. ( A frustum (plural: frusta) is the portion of a solid - normally a cone or pyramid - which lies between two parallel planes cutting the solid. the planes are perpendicular to the conter axis of the solid.) Please find a volume of this. (in a basic formula)

2007-10-18 11:00:44 · 4 answers · asked by Bryan K 1 in Mathematics

Where are frogs during winter?Do they stay alive ?

2007-10-18 11:00:31 · 11 answers · asked by cbkingone 2 in Zoology

in nuclear fission:
(a) certain atoms break into fragments when struck be neutrons
(b) a chain reaction does not occur
(c) energy is released mostly as light
(d) all of these

in nuclear fision:
(a) large atoms break apart into smaller atoms
(b) nuclei of atoms combine
(c) liquids are converted to solids
(d) elements combine to form compounds

2007-10-18 10:58:52 · 1 answers · asked by Jenn S 2 in Physics

2007-10-18 10:57:35 · 6 answers · asked by Greico P 2 in Engineering

I just recieved a Hawaiian Volcano plant, and I was wondering if anyone knew anything about them. ( sunshine, water, temperature,etc..) I have never even heard of them, so I have no clue what they need.Thank You!

2007-10-18 10:57:22 · 1 answers · asked by Anonymous in Botany

or do we have to memorize the combining capacity of elements???

please help

test tomorrow!!!!

2007-10-18 10:57:08 · 2 answers · asked by YKSVOKIAHCT... 2 in Chemistry

A green - leafed plant is crossed with a plant with yellow leaves. This produces 185 green - leafed plants. Summarize the genotypes and phenotypes of the offspring produced by crossing two green leafed plants obtained from the initial parent plants. Answer soon plz!!!!!!!!! Thank you!

2007-10-18 10:57:01 · 4 answers · asked by bdancer15 1 in Biology

I have a plastic water tank with an approximately 1 foot open hole at the top of the tank and a fitting at the bottom of the tank which is about 3 inches in diameter at the max. I need to heat the water to about 30-40 degree celsius. I was wondering how this could be done.

2007-10-18 10:56:05 · 5 answers · asked by Jeremy L 1 in Engineering

2007-10-18 10:55:56 · 5 answers · asked by Anonymous in Geography

2007-10-18 10:55:02 · 2 answers · asked by nana ♥ 2 in Biology

2007-10-18 10:54:00 · 3 answers · asked by Anonymous in Geography

2007-10-18 10:53:12 · 15 answers · asked by Anonymous in Earth Sciences & Geology

Anyone can give me 2 things :
-What they eat ?
-How long do they live ?

For these 3 animals ....
Gemsbok
Hartmann's Zebra
And Desert (Sand) lizards

Thank you so much for helping me out !!

2007-10-18 10:52:09 · 1 answers · asked by bE bEn 1 in Zoology

What is 15% of 105? I don't know math

2007-10-18 10:52:01 · 12 answers · asked by K.S 1 in Mathematics

We just did a lab that focused on the extraction of caffeine from a tea bag and one of the questions I cannot figure out is if caffeine is acidic, basic or neutral? Does anyone know? I've been thinking it's neutral, but I don't know why...does it have anything to do with it's molecular structure, C8H10N4O2...any help would be greatly appreciated.

2007-10-18 10:51:06 · 4 answers · asked by James B 1 in Chemistry

I lived in northern England, but , when I come to think about it, I don't recall seeing the Milky Way, here in Switzerland. Is this something like the Northern Lights, which is only visible in northern regions of the northern hemisphere

2007-10-18 10:50:24 · 20 answers · asked by cymry3jones 7 in Astronomy & Space

2007-10-18 10:50:12 · 1 answers · asked by Anonymous in Geography