Chemistry - January 2007

type of bond formed?

a- metallic
b - nonpolar covalent
c - ionic
d - polar covalent

2007-01-02 14:12:00 · 2 answers · asked by lisa d 1

i know one would be it is a good conducter of electricity, but what would the other be, and how would metallic bonding between coppet atoms account for each of the propeties?

2007-01-02 14:02:34 · 5 answers · asked by lisa d 1

I know the formula for figuring out moles. However, the problem gives an overall amount, 0.4647g, and says that it contains elements C, H, and O. How do you find the number of moles for each element?

2007-01-02 13:51:34 · 5 answers · asked by Anonymous

I just got back from winter break, and as a result, I forgot how to balance equations. Can someone explain to me how to balance the equations:

Iron (III) nitrate and sodium chromate yields iron chromate and sodium nitrate

Magnesium and HCl yields magnesium chloride and hydrogen

Sodium carbonate and sulfuric acid goes through a double replacement

Lithium oxide and water goes through a double replacement.

Thanks!

2007-01-02 13:44:07 · 3 answers · asked by Anonymous

2007-01-02 13:34:39 · 1 answers · asked by hello 2

2007-01-02 13:30:18 · 3 answers · asked by hello 2

i am doing this for a science fair project and was wondering what does vinegar do to sugar crystals. please answer my question if u know it!

2007-01-02 13:25:04 · 1 answers · asked by ? 1

I am a junior in high school taking advanced chemistry

2007-01-02 13:22:11 · 4 answers · asked by ELIZABETH W 1

When 60.0 milliliters of 3.0-molar K2CO3 are added to 40.0 milliliters of 1.0 molar KHCO3, what is the resulting concentration of K+?

I got 4M by adding .36 mols [in 60 mL of 3.0 M solution K2CO3] with .04 [in 40 mL 1 M KHCO3], which is .4 and dividing it by the amount of liters that would come out of it, [.04+.06=].1, which equals .4=.1=4. Please explain this to me even if I got it right. Thanks a lot!

2007-01-02 13:16:36 · 2 answers · asked by Maziar S 3

If 0.4647g of a compound containing C, H, O atoms was burned in oxygen to yield 0.8635g of O2 and 0.1761g of H2O, how do you find the empirical formula?

If the molar mass of the compound is 142.11g/mol, what is the molecular formula?

2007-01-02 13:10:50 · 2 answers · asked by Anonymous

I know it sounds odd, but its for science, and we don't have one laying around the house.

2007-01-02 13:10:49 · 1 answers · asked by Ally D 1

2007-01-02 13:10:16 · 3 answers · asked by Anonymous

2007-01-02 12:45:37 · 4 answers · asked by Joey S 2

What reacts more readily with HCl...is it Ag (silver) or Mg (magnesium)

2007-01-02 12:42:34 · 3 answers · asked by Matt B 2

in solution.

2007-01-02 12:42:25 · 4 answers · asked by krnxblizzard 2

A. always absorbed
B. always released
C. eiher absorbed
D. burned away

2007-01-02 12:36:25 · 3 answers · asked by killsyche 3

A student measures the diameter of a test tube usin a ruler calibated in cm with graduations marked at each mm. which of the followin reported values is consistent with the markings on teh ruler and the rule of thumb for measuring devices?

A) 1.7 cm

B) 1.74 cm

C) 1.738

2007-01-02 12:34:34 · 4 answers · asked by Anonymous

I had to adjust my solution by adding more base.

2007-01-02 12:17:40 · 3 answers · asked by makatangtala 1

problems such as---
1. 689.3 grams of aluminum sulfate (moles)
2. 4.69 X 10^25 atoms of gold (moles)
3. 1.50 moles of calcium chloride (grams)
4. 1.26 X 10^24 formula units of sodium phosphate (grams)
5. 2.57 moles of potassium nitrate (particles)
6. 42.8 grams of magnesium sulfate (particles)

i'm fine on finding the molecular mass, i don't understand how to use dimensional (sp?) analysis to take that and find out what the answer needs to be in parenthesis.

2007-01-02 12:16:18 · 4 answers · asked by legallybrunette132000 1

This has something to due with Chemistry(NEED HELP FAST!)

2007-01-02 12:13:33 · 4 answers · asked by Ineed_ur.answer 1

2007-01-02 12:12:39 · 3 answers · asked by hello 2

The equation is 1/λ=R I I [1/n1<--subscript)2<--superscript)-1/n2 <---subscript)2<--superscript)] n = energy level

How do I solve it if the n= 1
please list your steps.

2007-01-02 12:08:27 · 2 answers · asked by Azumi 2

periodic table of elements..=]

2007-01-02 11:53:44 · 6 answers · asked by AdRiAnAlUv 1

2007-01-02 11:50:01 · 4 answers · asked by ricoh_smoothop 1

2007-01-02 11:47:05 · 13 answers · asked by AdRiAnAlUv 1

Please solve this question with thorough explanation. This is one topic in chemistry I'm having very much trouble with, and very much want to comprehend. Thank you very much☺!

2007-01-02 11:46:51 · 4 answers · asked by Maziar S 3

How would I write a brief procedure on how I could use solubility to separate a mixture into pure substances? Does this involve the percentage of solubility or evaporation?

Please respond in a couple days. Thank You!

2007-01-02 11:46:40 · 1 answers · asked by BusyMom 2

2007-01-02 11:40:07 · 9 answers · asked by AdRiAnAlUv 1

2007-01-02 11:39:20 · 7 answers · asked by Anonymous

I need help setting up these problems

1. a container with a volume of 893 L contains how many moles of air at STP?

2. A chemical reaction produces 0.37 mol of N2 gas. What volume will that gas occupy at STP?

Thanks for the help!!!

2007-01-02 11:30:31 · 3 answers · asked by Mia16 3