Chemistry - February 2007

What is the molar mass of the compound?

2007-02-08 12:07:25 · 5 answers · asked by sakinah_123 1

2007-02-08 11:58:03 · 6 answers · asked by guesswha 1

...down the inside of the other
beaker

2007-02-08 11:55:58 · 3 answers · asked by angel 1

Use the stoichiometry and the mass to mass relationships to find the answer.
The steps are needed.....

2007-02-08 11:42:28 · 2 answers · asked by Anonymous

what are 2 ways that elements can be made?

2007-02-08 11:33:59 · 3 answers · asked by viviana2grimaldo 1

A 25.0-ml solution of 0.011M CH3COOH is titrated with 0.200M KOH solution. Calculate the pH after the following additions of the KOH solution:
a) 0.0 ml
b) 5.0 ml

Thank you!

2007-02-08 11:25:29 · 1 answers · asked by Anonymous

what's the smallest? atoms, protons, electrons, or molecules?

2007-02-08 11:16:40 · 6 answers · asked by viviana2grimaldo 1

what, if anything, can a molecule be broken into?

2007-02-08 11:10:31 · 6 answers · asked by vivian2grimaldo 1

2007-02-08 11:09:13 · 1 answers · asked by hilary 2

2007-02-08 10:56:38 · 1 answers · asked by Anonymous

2007-02-08 10:55:32 · 1 answers · asked by Anonymous

7. Which one of the following chemical equations is balanced?


A. 2NaCl + H2SO4 ? HCL + NaSO4
B. NH3 + H2O ? 2NH4OH
C. KOH + H2SO4 ? KHSO4 + H2O
D. 2Na + S ? 2NaS

2007-02-08 10:49:19 · 2 answers · asked by tami t 1

how does a compound differ from an element?

2007-02-08 10:45:04 · 4 answers · asked by vivian2grimaldo 1

2007-02-08 10:44:31 · 3 answers · asked by . 6

write electron configurations for the elements that are identified only by these atomic numbers

a. 15
b. 12
c. 9
d. 18

2007-02-08 10:44:24 · 3 answers · asked by aaaaa 2

This is a chemistry question? Pleeeeze Help!

2007-02-08 10:37:11 · 1 answers · asked by sweetpifairy89 2

2007-02-08 10:36:32 · 5 answers · asked by Anonymous

2007-02-08 10:28:46 · 1 answers · asked by lacybsmom 2

In laymen's terms please.

2007-02-08 10:27:39 · 1 answers · asked by CluelessOne 5

Cs +H20 --> Cs(OH) + H2


i know its unbalanced, but i just need the type..is it combusion, single displacement, double displacement, decomp, synthesis.....or something else

2007-02-08 10:26:22 · 6 answers · asked by Anonymous

2007-02-08 10:26:07 · 1 answers · asked by rayan k 1

is H2O (water) a chemical bond?

2007-02-08 10:23:13 · 1 answers · asked by vivian2grimaldo 1

What are the three strong bonds and how do you tell them apart?

2007-02-08 10:21:46 · 3 answers · asked by Mysara e 2

I know it raises the freezing point, but what is going on at the molecular level?

2007-02-08 10:18:39 · 6 answers · asked by Anonymous

how do strong and weak acids differ?

2007-02-08 10:17:52 · 1 answers · asked by Mia16 3

CuSO4 x 5H2O

=36.1%

How do I find the percet of water of hydration for:
CoCl2 x 6H2O
Na2CrO4 x 10H2O
MgSO4 x 7H2O

If you can please do it step by step. Thanks!

2007-02-08 10:15:20 · 2 answers · asked by Heat 3

If concentration of ehanoic acid in vinegar as % of mass is 5%, what is the molarity of ethanoic acid in undiluted vinegar? The density of vinegar is 1.02 g/cc and RMM of Ethanoic Acid is: 282.05.

2007-02-08 10:13:00 · 4 answers · asked by Anonymous

1: The product formed which is the same in the electrolysis of fused sodium chloride and the electrolysis of brine is
Sodium Hydroxide
hydrogen dioxide
Chlorine carbonate
sodium oxide

2: Metallic sodium is usually stored under
water
acid
alcohol
kerosene

3: A compound that finds use both in tank fire extinguishers and in baking powders is
starch
baking soda
washing soda
sulfuric acid

4: Potassium Salts are important for the manufacture of
carborundum
fertilizers
plastics
washing soda

2007-02-08 10:08:14 · 1 answers · asked by Anonymous

I am looking at what it took to bridge nonliving compounds to living compounds.

2007-02-08 10:08:12 · 4 answers · asked by Robby S 1

1.water evaporates when heated.
2.a sheet of paper is torn into many little pieces.
3.white solid produces a green gas and a blue solid when heated.
4.white solid produces a clear liquid when heated.

2007-02-08 10:01:16 · 2 answers · asked by anime girl 1