Chemistry - December 2006

Basic properties are characteristic of all alkaline earth metal oxides except one. The formula of this exception is

a) BeO
b) MgO
c) SO2
d) B2O3
e) CaO

2006-12-04 09:08:15 · 3 answers · asked by farxfromxlonelyx 1

What's the chemical equation that occurs when vinegar is added to ammonia (on a molecular level)

2006-12-04 09:06:11 · 2 answers · asked by *Star* 1

How can molecule, such as CO2 or CH4 contain polar bonds yet still be a non polar substance?

2006-12-04 09:06:04 · 2 answers · asked by Anonymous

I got FeCl2, but I'm not sure if I'm on the right track, thank you :)

2006-12-04 09:01:22 · 4 answers · asked by Dee 2

2006-12-04 08:49:07 · 1 answers · asked by prettyme25y 1

I broke a mercury thermometer outside (fell on a rock). It is an elemental merc thermometer with the silvery fluid. Afterwards, just by being near it, my shirt, etc. had a nasty chemical smell. I know that mercury is odorless, and dangerous, so what was the smell and how dangerous is it? i thought it might be the other clear liquid that is in there with the merc. Anyway, it is extremely strong and i definitely inhaled it. Any thoughts on a) what other chemical solutions are in there with the elemental mercury? b) how dangerous are those solutions? c) how to clean that up the non-mercury elements, if necessary? thanks!!!!

2006-12-04 08:48:42 · 12 answers · asked by Jon H 1

Why does water dissolve many ionic compounds?

2006-12-04 08:48:10 · 2 answers · asked by Anonymous

Extra Credit for Science!!

2006-12-04 08:41:00 · 74 answers · asked by Anonymous

Maximize the amount of NO..is this right??
A) Concentration of Oxygen...More Products
B) The Temperature...Decrease Temp More Reactants
C) The Pressure...Increase Pressure More Products
D) The Concentration of the water...Concentration H2O more Reactants

Hope this makes sense

2006-12-04 08:38:41 · 4 answers · asked by Anonymous

I can't work it out and the internet has failed me! And if you could tell me the rest of the steps too I'd appreciate it. Thanx!

2006-12-04 08:08:42 · 3 answers · asked by Moi? 3

Can anyone give me a good website showing how to draw two isomers of dibromobenzene? What about bromochlorobutane?

2006-12-04 07:59:47 · 6 answers · asked by jamie23 3

How many grams of hydrogen is formed when 0.50g of calcium are added to water? CA = 2H2o = Ca (OH)2 + H2

2006-12-04 07:41:43 · 3 answers · asked by Cindy F 1

how can the bohr model of atomic structure be used to explain the reactivity of alkaline metals?

thanks!

2006-12-04 07:39:36 · 3 answers · asked by LePicureChance 1

2006-12-04 07:31:59 · 1 answers · asked by geebgeebgeeb 1

Which elements are liquid at 0C?
At what tempurature are all elements solids?
At 5900c,which element is still a liquid?
Where does the symbol Pb come from?
Which elements had not been discovered by 1980?
Three most reactive elements
Silver has the symbol Ag,where does this come from?

2006-12-04 07:29:08 · 4 answers · asked by spykid_345 1

Can you also include the steps?

2006-12-04 07:26:20 · 1 answers · asked by Nivin Thundiyil 2

2006-12-04 07:26:15 · 2 answers · asked by ? 1

1. A ___________________ contains neutral atoms.

2. An ion is a positively or negatively ______________ atom that has either gained or lost _____________.

3. A _____________ molecule is made up of pairs of atoms.

4. Molecules and molecular compounds are mafe up of ______________atoms.

5. Ionic compounds are made up of atoms that are ________________ or ___________________ charged.

6. To become charged, an atom must gain or lose ______________.

7.

2006-12-04 07:12:13 · 1 answers · asked by Guitr Playrrr 2

2006-12-04 07:08:21 · 5 answers · asked by Anonymous

Science.. something to do with elements and stuff like the periodic table i think! help me!

2006-12-04 06:48:26 · 11 answers · asked by Anonymous

4 Al + 6HCl -> 3 H2 ^ +2 al2cl3

2006-12-04 06:47:07 · 2 answers · asked by ♪♫♥photographer♥♫♪ 2

Are there any safe and legal hallucinogens out there?

2006-12-04 06:43:37 · 10 answers · asked by Anonymous

2006-12-04 06:36:18 · 4 answers · asked by kiddo 3

2006-12-04 06:30:41 · 3 answers · asked by prettyme25y 1

Ca(OH)2(aq) + HCl(aq) →




a) Water and a salt are the products


b) This is an elmination reaction


c) When balanced, the stoichiometric coefficient of HCl is two


d) The pH of the resulting solution would be a value other than seven

2006-12-04 06:20:49 · 3 answers · asked by Christie 1

2006-12-04 06:18:12 · 2 answers · asked by heinz_fur_alles 1

Which of the following are conjugate acid-base pairs and why ?


a) NaF and F -
b) HNO3 and HNO2
c) HI and I -
d) CH3COOH and CH3COO -
e) NH3 and NH2-

2006-12-04 06:18:02 · 2 answers · asked by Christie 1

a) HIO4 and IO4-
b) HClO4 and Cl -
c) KOH and OH -
d) HBr and Br -
e) H3O+ and H2O

2006-12-04 06:13:14 · 3 answers · asked by r.y 2

A student prepares a solution by dissolving 4.84 g of NaCl in enough water to make 200. mL of solution.
The student then transfers 26.0 mL of this solution into a 100. mL volumetric flask. Water is then added
up to the 100. mL mark.
What is the final molarity of NaCl in the 100. mL flask ?

2006-12-04 05:46:12 · 2 answers · asked by Anonymous

If 1.5g of salicylic acid is heated with an excess of acetic anhydide, what is the theoretical yeild of acetylsalicylic acid?

2006-12-04 05:43:00 · 1 answers · asked by SweetAngel 1