Chemistry - March 2007

If so I do understand why as covalent bonds are usually between non metals.

2007-03-20 20:34:03 · 3 answers · asked by Gideon 1

1 why alkali is soapy in nature?
2 can cathode be called electron donor and proton acceptor?

2007-03-20 20:32:57 · 3 answers · asked by Anonymous

Is AlSi3O10 that's the silicate in biotite covalently bonded? if so how? As I understand only non mentals normally covalently bond together.

2007-03-20 20:20:54 · 2 answers · asked by Gideon 1

2007-03-20 20:01:15 · 1 answers · asked by bjello 1

Please tell how you solve it.
Thanks

2007-03-20 20:00:55 · 3 answers · asked by sausofornia 2

These are some questions from my home schooling that I'm not sure what the answers are.

1. The pasta Josh is cooking would be considered
A) soluble in water
B) insoluble in water
C) saturated
D) unsaturated
I think the answer is C.

2. Tasha makes tea by pouring hot water into a cup with a tea bag. She lets the cup sit for awhile and then takes out the tea bag. How many phases are in the resulting solution of tea?

A) none
B) one
C) two
D) three
I think the answer is B.


THANKS for the help

2007-03-20 19:50:47 · 2 answers · asked by dex4774 1

NH4OH + H2C2O4

NaC2H3O2 + HCl ==>

Na2CrO4 + Pb(C2H3O2)2 ==>

KC2H3O2 + CoSO4 ==>


i know that C2H3O2 and H2C2O4 will form H2O but i duno how to get the entire products

2007-03-20 19:08:47 · 1 answers · asked by leyzeebum 1

What is the easiest way to prepare an incredibly dilute solution of lead ions in water? Such that a machiene with the ability to detect lead down to a 1 X 10to the -14 molar. I need all the help I can get. Thanks in advance.

How would you dilute a solution of water down to a point were it is almost impossible to detect the lead

2007-03-20 18:36:20 · 1 answers · asked by dancelover90 2

2CCl4 + 02 <---> 2COCl2 + 2Cl2

Kc = 4.4x10 ^23 at 1,000 K

2007-03-20 18:33:41 · 2 answers · asked by allie 1

2007-03-20 18:20:31 · 4 answers · asked by damodharan c 1

What is the ratio of oxygen atoms to hydrogen atoms in the mineral
carnotite, K2(UO2)3(VO4)2.3 H2O?

2007-03-20 18:16:15 · 1 answers · asked by Anonymous

so if we change protons, nuetrons and protons of an atom, how would that affect that atom, its atomic name, number and placement on the periodic table?

2007-03-20 18:05:09 · 3 answers · asked by Anonymous

Help. I am horribly confused.

2007-03-20 17:50:49 · 3 answers · asked by Jeannie 1

2007-03-20 17:42:37 · 1 answers · asked by Bri 3

hi all, i just got a pair of calf length rainboots as a gift. they are cool, but the soles are this pinky/salmon color and i want to paint them. they are rubber/latex; the shiny stuff that has a synthetic smell. i know for a fact they can be painted because the company logo is painted/printed on. they werent expensive cuz i was there when they were being bought so i wouldnt be ruining an expensive gift. why bother? because the boots are awesome, its just the sole i want to change. what kind of paint do i use and do i need primer or anything else like that?

2007-03-20 17:27:40 · 1 answers · asked by Anonymous

2007-03-20 17:03:35 · 5 answers · asked by AVTAR S 1

2007-03-20 16:43:00 · 9 answers · asked by Anonymous

2007-03-20 16:16:19 · 4 answers · asked by soncho 1

How does it work, cause OH- and H3O+ ions can't be produced, can they? And if not, then how is it an acid or base? Are they neutral ? e.g CaCl.

2007-03-20 16:15:40 · 3 answers · asked by Anonymous

What are 5 polymers that we use today to make our modern life easier?

2007-03-20 16:15:26 · 2 answers · asked by theoneandonly4251 2

Using F=kQ1Q2/r^2, can anybody give a calculation for the h-bond between water molecules (partial positive hydrogen and partial negative oxygen)? I would like a link, anything, to find the values of Q1, Q2, and suggestions for approximating r.

2007-03-20 16:10:46 · 1 answers · asked by J Z 4

if of water added to an acid is changed, will it mater (pH level etc.) i know i feeli dumb asking this

2007-03-20 16:08:40 · 7 answers · asked by Anonymous

2007-03-20 16:06:09 · 2 answers · asked by dasdaner 1

I saw a video on youtube where people were "supercooling" or "super freezing" water. I was wondering how they do this, can anyone tell me how?

2007-03-20 16:06:06 · 2 answers · asked by Joshua S 1

GaCl2 - Gallium Chloride
HS - hydrosulfuric acid
Pb(NO2)2-lead (II) nitrate
NaClO2- Sodium chlorate
K3PO4-potassium phosphate

2007-03-20 15:45:30 · 2 answers · asked by Anonymous

Can dried LSD be absorbed through the skin on accident? I suspect someone put liquid LSD in my laundry... Am I safe if I washed it a second time and did not wear anything until it had been thoroughly dried?

2007-03-20 15:40:41 · 8 answers · asked by johnny mnemonic 1

0.003 mol NaOH and 0.003 mol Ba(OH)2 are completly dissolved in water to make1L of solution at 25C, what is the pOH of solution?

thanks guys.. if u can help me out

2007-03-20 15:36:52 · 1 answers · asked by Anonymous

did i get this right?

at 25 C, a 0.025 M solution of formic acid HCOOH, is found to have a hydronium ion [H3O+] concetration of 2.03 x 10^-3M. Calculate the ionization constant of formic acid.

.0812

thanks!!!

2007-03-20 15:35:19 · 1 answers · asked by thelollipop 1

Which is the mechanism that makes organic liquids and vapors produce fractures in a polymeric material?
Why does this happen???

2007-03-20 15:33:22 · 1 answers · asked by IQ DOSON 2

i know 1/2 is .5 and 1/4 is .25 but what is 1/8???

2007-03-20 15:33:10 · 2 answers · asked by Lizface 3