Chemistry - October 2006

find the number of neutrons and electrons?

2006-10-02 10:11:43 · 2 answers · asked by ~ 1

In order for this equation to be balanced, how many atoms of oxygen must be present on both sides of the equation.

C5H12+ 8 O2 -->5 Co2 + 6 H2O

2006-10-02 10:09:31 · 3 answers · asked by cetinnovations 1

2006-10-02 10:09:21 · 1 answers · asked by Anonymous

2006-10-02 10:08:55 · 4 answers · asked by lost 1

O3-->O2

Cu + AgNO3-->Cu(NO3)2(aq) + Ag

Fe+ O2--> Fe203

NH3+O--> NO2+ H2O

2006-10-02 10:01:47 · 4 answers · asked by cetinnovations 1

2006-10-02 09:22:14 · 7 answers · asked by Snickers 3

I can't my head round this and wondered if anyone can help me! When filling electron orbitals and using the building up order (1s2, 2s2...etc) I don't understand the way the d orbitals fill. I get everything else about it but; e.g. chromium. The configuration is [Ar]3d4, 4s2 but why is it not just [Ar] 3d6? Why does the 4s get electrons when the 3d is not yet completely filled? Can someone please explain this :)

2006-10-02 09:21:01 · 9 answers · asked by Showaddywaddy 5

Redheads dont read this it is not good for you?
I heard how to detect a red head is to peel a orange put it on the ground without them knowinging it and when one steps on it well turn red it wont work in there hands because they are cautious not to let anyone catch on of there monstrosity.

2006-10-02 09:06:54 · 4 answers · asked by Anonymous

Does anyone know the oxidation for chloride and/or sulfide... And if possible what are the formulas? I'm not sure if they are Cl and S? I have been looking this up over 30 minutes now and I'm fed up, so any help is really appreciated!!

2006-10-02 08:39:00 · 4 answers · asked by Dee 2

propane c3h8

2006-10-02 08:31:07 · 1 answers · asked by nellygurl 1

2006-10-02 08:30:56 · 19 answers · asked by apoorva_gem 1

2006-10-02 08:28:42 · 7 answers · asked by fletch 1

I need to balanced this equation using the half reaction method.
Pb+PbO2+H2SO4---> PbSO4

I just need the 2 half reactions and i can do the rest myself,
is one of the half reactions:
Pb+PbO2-->PbSO4?
What is the other half reaction if this is correct?
thanks!!!! :)

2006-10-02 08:18:08 · 2 answers · asked by Anonymous

Are these calculations correct???
Density of aluminum=2.699g/cm3 (given)
Mass=0.96g

2.699=0.96/V v=.3556872916????

Is that the right volume?

Also if it is then to find the height it is
v= L x W x H

.3556872916= 15.2cm (given) x 10.2cm (given) x Height????
Height= what?????

Help please

2006-10-02 07:55:20 · 2 answers · asked by armstrong_terri 1

2006-10-02 07:55:10 · 6 answers · asked by Anonymous

2006-10-02 07:24:35 · 2 answers · asked by T.T 2

1) nitrogen (1V) oxide
2) ferrous bromide
3) magnesium sulfide
4) ammonia
5) ammonium sulfate
6) chromium (111) carbonate

2006-10-02 07:16:56 · 1 answers · asked by Anonymous

2006-10-02 07:10:59 · 1 answers · asked by T.T 2

2006-10-02 07:10:34 · 7 answers · asked by lost 1

What is the mass of fuel in kilograms when the tank is full?

2006-10-02 06:59:43 · 2 answers · asked by edtheman25 1

Simple little experiment: if you were to set up the apparatus to electrolyse sodium hydroxide, what will be:
1 - Formed at the positive electrode?
2 - Formed at the negative electrode?
3 - The resulting solution?

I know this question should be rather easy, it's just been a while since I've done much in the way of chemicals!

2006-10-02 06:52:44 · 2 answers · asked by Rich 5

2006-10-02 06:50:02 · 2 answers · asked by arieshay 1

Question is..Hydrogen bonds can form between___ adjacent to each other. (a.) two hydrogen atoms (b.) two Oxygen atoms, (c) a hydrogen and an Oxygen atom or (d) negative charges

2006-10-02 06:40:03 · 3 answers · asked by yessireee 3

I am in the eighth grade and want to know what i need to take in 9th,10th,11th,and 12th to become a chemmist and what would i take in colledge? if you could please answer i would like it alot. thank you.

2006-10-02 06:30:02 · 6 answers · asked by Scotty Envy 2

1)Explain different molar relationships,and how they apply to Stoichimoetry.
2)Why is it more accurate to use the point of intersection of the two lines to find the mole ratio rather than the ratio associated with the greatest temperature change?
3)If the two solutions used are not at the same initial temperature, a correction must be made to find the correct change in temperature. How should this be done?

2006-10-02 06:14:46 · 1 answers · asked by Kelly 1

I need to plan a chemistry experiment and need pure nitrogen gas.

2006-10-02 06:08:09 · 3 answers · asked by kat g 2

I was learning about the MR-VP biochemical test and this question came up.

2006-10-02 05:41:11 · 3 answers · asked by Anonymous

Properties of elements. Please help me out and tell me if each of the foloowing element is magnetic/non magnetic and conductive/non conductive.

Sn (tin)
Al (aluminium)
Pb (lead)
Zn (zinc)
Fe (iron)
Cu (copper)
Mg (magnesium)
Si (silicon)
S8 (8 is a subscript and i dunno what it is? but S is sulfur)
Ni (nickel)
C (carbon)

2006-10-02 05:17:26 · 2 answers · asked by yassem1ne 2

2006-10-02 05:11:40 · 7 answers · asked by Marcel P 1

2006-10-02 04:50:08 · 16 answers · asked by Adriana A 1