Chemistry - November 2006

if 5.0 * 10^-4 moles of Ba(No3)2 were added to 1.0 L of a
6.0 *10^-3 M solution of NaF, would a precipitate form? Show calculation

2006-11-15 12:19:59 · 2 answers · asked by amy B 1

I don't understand this...

A metal that will replace the ions of another metal in water is a more _____ metal than the metal whose ions are replaced.

Please help me! Thank you! =)

Also, please explain it to me thoroughly so I can learn too!

2006-11-15 12:18:09 · 6 answers · asked by LOVE♥ 1

2006-11-15 12:13:57 · 1 answers · asked by smileyyface 1

2006-11-15 11:53:59 · 2 answers · asked by Anonymous

These two forces confuse me a lot. From what I know, London forces occurs in ALL substances. However, they are most likely found in "neutral" (?) molecules. Dipole-dipole interactions are between polar molecules and are permanent. Can anyone clarify these two more for me? Also, given two different types of atoms and molecules, how do you differentiate the two? Thanks in advance!

2006-11-15 11:36:04 · 1 answers · asked by Reimei 2

Question: how much heat energy is needed to melt 32.0 grams of ice at 0 degrees celsius and then heat the water to 20 deg celsius?

Given: changeH(fusion), H20 = 6.02 KJ/mol; C(s) - specific heat - H2O = 4.1813 J/gk

My Approach:

i converted 4.1813 J/gk (1kJ / 1000J) = .0041813 KJ/gk

Then, i solved for the Energy

q = mc(s)changeT
q = (32.0 g)(.0041813 KJ/gk)(20 - 0 deg celsius)
q = 2.68 KJ <--------my answer! what do you get?

2006-11-15 11:35:04 · 1 answers · asked by Anonymous

there are six of them listed but whats one of them and can you give me 6 predictions about it...yeah thanks...and hurry aaa lol jk take your time.

2006-11-15 11:31:33 · 2 answers · asked by cherrysnowcone08 4

2006-11-15 11:14:35 · 2 answers · asked by falawoods 2

how many grams of Li2CO3 are produced from the complete reaction of 88.02 g of CO2 ?

2006-11-15 11:14:18 · 2 answers · asked by tachou1024 2

SO2 + O2 → SO3


how many moles of SO3 are produced from the complete reaction of 3.02 moles of SO2 ?

Enter a numeric answer only, no units.

2006-11-15 11:13:49 · 1 answers · asked by Anonymous

2006-11-15 11:06:07 · 2 answers · asked by baglady52005 1

2006-11-15 11:04:11 · 1 answers · asked by Anonymous

2006-11-15 11:03:54 · 2 answers · asked by Anonymous

2006-11-15 11:02:01 · 8 answers · asked by bob 1

Are they the same?

2006-11-15 11:01:05 · 5 answers · asked by Kamote 1

2006-11-15 11:00:21 · 3 answers · asked by mike g 1

atomic number 35 and mass is 79.904.....yeah whats the number of neutrons...

2006-11-15 10:59:29 · 2 answers · asked by cherrysnowcone08 4

A stock solution will be provided. Calculate how much is needed to make approximately 500-mL of 0.04 M KMnO4

2006-11-15 10:53:38 · 2 answers · asked by Geolady 1

2006-11-15 10:51:29 · 3 answers · asked by papapita 1

can u rip it from any old electronics or the like.

2006-11-15 10:45:06 · 7 answers · asked by bob 3

2006-11-15 10:37:02 · 1 answers · asked by Geolady 1

CH4 + O2 → CO2 + H2O


how many moles of H2O are produced from the complete reaction of 4.26 moles of CH4 ?

2006-11-15 10:33:14 · 2 answers · asked by dannyg11us 1

2006-11-15 10:27:00 · 5 answers · asked by papapita 1

Phosphorus reacts with sulfur to produce a smelly, yellow crystalline solid, P2S5.
Show calculations.
a) Write a balanced chemical equation to represent this reaction
b) If 3.20g of phosphorus react with 4.10g of sulfur, which reactant is in excess?

2006-11-15 10:26:21 · 1 answers · asked by untilyoucamealong04 3

in one experiment 2.04g of H2 is mixed with 11.35g of N2. what is the theoretical yield of NH3? I.E. how many grams of NH3 chould be formed?

2006-11-15 10:23:38 · 3 answers · asked by tachou1024 2

2006-11-15 10:07:00 · 3 answers · asked by Geolady 1

4Cu + O2 -->

What is the name of the compound ?

An example of the correct answer format would be lead(II) nitrate note the space

2006-11-15 10:05:37 · 2 answers · asked by dannyg11us 1

i work for a mill and glue alot of stuff, but the clean up is hecktic with jus scraping it off of a plastic surface. need something to help aid in the cleaning process but is safe for the plastic surface and the machine i use.

2006-11-15 09:58:13 · 9 answers · asked by n8ivebeast 1

2006-11-15 09:56:49 · 2 answers · asked by papapita 1

If it can't balenced (an i can't get it to do so!) please help me understand why!

2006-11-15 09:53:29 · 2 answers · asked by Anonymous