Chemistry - November 2006

2006-11-01 22:34:36 · 8 answers · asked by Anonymous

2006-11-01 22:31:04 · 6 answers · asked by Anonymous

2, 8, 8

2, 8

2

or 2, 8, 1

2006-11-01 21:29:50 · 3 answers · asked by K 4

2006-11-01 21:29:48 · 4 answers · asked by hunger4more88 1

2006-11-01 21:28:57 · 2 answers · asked by hunger4more88 1

2006-11-01 20:47:57 · 11 answers · asked by U2 1

2006-11-01 20:38:30 · 5 answers · asked by U2 1

2006-11-01 20:35:29 · 2 answers · asked by U2 1

1. Which of the following is an inorganic compound?

H2CO2
NaCN
HC2H3O2
NaC2O4
C6H12O6
2. Which of the following is a binary covalent compound?

NO2
NaNO3
C2H5O
CaO
Na2O
3. Which of the following substances is not made of molecules?

NH3
CO
O2
ClO2
CuCl2
4. Which of the following is an organic compound?

CaCO3
SiO2
N2O4
NaC2H3O2
Cu(OH)2
5. Which of the following substances must be covalent?

KBr
CaCl2
Cs2O
NaF
F2
6. Which of the following is a characteristic of covalent compounds?

always contain both cations and anions

made of molecules

liquid forms conduct electricity well

bonding involves transfer of electrons between atoms

usually made of metals and nonmetals

2006-11-01 20:20:37 · 2 answers · asked by Pops P 1

continue....bicarbonate
no other substance or formula are provided for the problem. looking for a clear explaination.

2006-11-01 19:33:37 · 1 answers · asked by tanny 1

its like due hyperconjugation teritary carbocation is stable.so it will lead to a unstable product but still it is prefered over primary one.so plz lemme know y is it so

2006-11-01 19:31:59 · 3 answers · asked by Akanksha D 1

Can anyone help me with a balanced equation of extracting copper if i started of with copper carbonate, copper hydroxide and quartz. plus i have added sulpuric acid

2006-11-01 18:56:44 · 1 answers · asked by Anonymous

At STP, 1.0 L Br2 reacts completely with 3.0 L F2, producing 2.0 L of a product. What is the formula of the product? Assume all substances are gases.

2006-11-01 18:54:16 · 2 answers · asked by goodbye say bye 1

2006-11-01 17:24:41 · 7 answers · asked by LP 1

hii guys..

Me doing some proj....i was trying to find abt lead crystal glass but DIDN't GET NE THING !!!!!!

If u can find something regarding da topic....plzz tell me !...

2006-11-01 17:05:09 · 3 answers · asked by Anonymous

How do i find the precipitate of
sodium hydroxide, NaOH, and iron(III) chloride, FeCl3?

2006-11-01 16:40:59 · 2 answers · asked by Legend 4

2006-11-01 15:54:55 · 4 answers · asked by substance 2

2006-11-01 15:40:20 · 4 answers · asked by keepahappyface 1

2006-11-01 15:31:47 · 13 answers · asked by Jimboy 1

Calculate the standard enthalpy of formation for diamond, given that

C (graphite) + O2 (g) ---> CO2 (g) dH = -393.5 kJ/mol
C (diamond) + O2 (g) ---> CO2 (g) dH = -395.4 kJ/mol

2006-11-01 15:20:08 · 2 answers · asked by Anonymous

If a pharmaceutical sodium chromate solution registers 2400 counts per second today what will the count read in 78 days?

a.) 300 cps
b.) 1600 cps
c.) 1200 cps
d.) 600 cps

2006-11-01 15:01:29 · 2 answers · asked by Anonymous

I'm drawing a blank on this...

how do I get the number of moles of H20 produced in a rxn of 50 mL of 1.0M HCl and 50mL of 1.0M NaOH?

any help is appreciated:)

2006-11-01 14:58:46 · 5 answers · asked by Anonymous

What is the half-life of zirconium-86?

a.) 4 hours
b.) 16.5 hours
c.) 22 hours
d.) 8.2 hours

2006-11-01 14:57:44 · 2 answers · asked by Anonymous

For example, instead of adding two drops of indicator 20 are added...

2006-11-01 14:55:17 · 4 answers · asked by Nuna 3

a.) beta
b.) alpha
c.)x-ray
d.) omega

2006-11-01 14:53:33 · 3 answers · asked by Anonymous

222Rn ------> 218Po + ______

a.) an alpha particle
b.) a beta particle
c.) a hydrogen atom
d.) a neutron

2006-11-01 14:50:42 · 3 answers · asked by Anonymous

Energy must be (added to or given off) by the electron when it moves to an orbital closer to the nucleus.

What two assumptions enable us to draw more complex atoms of the pattern of the hydrogen energy levels?

Thanks!

2006-11-01 14:32:41 · 5 answers · asked by =P 2

Based on the third law of thermodynamics, we know that perfect crystals at absolute zero have
A. same enthalpy
B. differing deltaA values
C, same entropy
D. same crystal lattices
E. both A and C.
im leaning towards A, or C..or both.
im not sure.
anyone???
any help is greatly appreciated!!! THANKS!

2006-11-01 14:19:23 · 3 answers · asked by Anonymous

Explain why ionic compounds can conduct electricity in the molten state or when dissolved, but not when they are solids?

2006-11-01 13:52:59 · 3 answers · asked by Anonymous

how do u tell if a substance is aqueous or solid, suppose BaCO3 what is it? (s) or (aq)? and whats AgNO3?

2006-11-01 13:52:51 · 3 answers · asked by Preeya 5