Chemistry - January 2007

Are organophosphate insecticides fat-soluble?

2007-01-09 13:46:41 · 2 answers · asked by Sean 2

2007-01-09 13:45:05 · 6 answers · asked by d. clocks 1

is an illustration of what?

a. activation energy
b. the law of conservation of energy
c. the law of conservation of mass
d. a double replacement reaction

2007-01-09 13:37:16 · 3 answers · asked by Anonymous

2007-01-09 13:24:48 · 2 answers · asked by chingchang 1

2007-01-09 13:02:59 · 13 answers · asked by arg.jew. 2

2007-01-09 12:57:33 · 4 answers · asked by Anonymous

1.SO3-2
2.O-2
3IO3-1
4.I-1
5.Hg2+2
6.Mn+2
7.Se-2

2007-01-09 12:56:13 · 4 answers · asked by Anonymous

2007-01-09 12:51:08 · 1 answers · asked by Anonymous

and calcium hydroxide?
what does that form?
i think it makes H2SO3+CaO?
which breaks down to H2O+SO2+CaO?
so the overall equation is
SO2+Ca(OH)2--->H2O+SO2+CaO
is this correct?
it doesnt have to be balanced.

2007-01-09 12:49:23 · 2 answers · asked by Sparkle 3

What is the decomposition of sulfuric acid?
is it H2O + SO3?

beacuse if its H20 and SO2, it would have to be decomposed from H2SO3, not H2SO4.
ahhhh

2007-01-09 12:40:43 · 3 answers · asked by Sparkle 3

1.In a double-replacement reaction, ____.
a. the reactants are usually a metal and a nonmetal
b. one of the reactants is often water
c.the reactants are generally two ionic compounds in aqueous solution
d.energy in the form of heat or light is often produced

2. Mg(OH)2(s) → MgO(s) + H2O(g)


The type of reaction represented by the above equation is —
a.single-replacement
b.synthesis or combination
c.double-replacement
d.decomposition
e.combustion

3.The equation 2Cr(s) + 3Fe(NO3)2(aq) → 3Fe(s) + 2Cr(NO3)3(aq) is an example of which type of reaction?
a.decomposition reaction
b.synthesis or combination reaction
c.combustion reaction
d.single-replacement reaction
e.double-replacement reaction

4.When magnesium is heated in the presence of nitrogen gas, solid magnesium nitride forms.
What type of reaction takes place?
a.Single-replacement
b.Double-replacement
c.Synthesis or Combination
d.Decomposition
e.Combustion

2007-01-09 12:40:26 · 2 answers · asked by Anonymous

i need help plze help me with the element sodium

2007-01-09 12:33:22 · 10 answers · asked by singervv01 1

What are some examples of chemical reactions taking place in a recipe...ex. brownie recipe or something?

2007-01-09 12:31:40 · 1 answers · asked by Anonymous

can someone explain me what are isomers ???
and can someon ehlp me to find all isomers of C5H2 ???
Thank you all

2007-01-09 12:23:59 · 2 answers · asked by guddi_bhalodia 2

The spectator ions in the reaction ZnCl2 + 2LiOH ---> LiCl + Zn(OH)2 are..
The spectator ions in the reaction KOH + HCl ---> PbI2 + KNO3 are..
The spectator ions in the reaction Pb(NO3)2 + KI --> PbI2 + KNO3 are...
The spectator ions in the reaction ZnI2 +NaOH --> NaI + Zn(OH)2 are...

2007-01-09 12:09:51 · 2 answers · asked by Samantha Jo 3

2007-01-09 11:58:49 · 6 answers · asked by Sonya M 1

A substance was found to be a soft, nonconducting solid at room temperature. The substance is most likely

1. a molecular solid
2. a network solid
3. a metallic solid
4. an ionic solid

2007-01-09 11:44:11 · 2 answers · asked by Science 101 2

2007-01-09 11:39:38 · 2 answers · asked by Anonymous

2007-01-09 11:36:48 · 1 answers · asked by Anonymous

What is the percentage composition of alloy containing 23.20lb lead, 10.40lb tin, 6.00lb antimony, and 0.40lb copper?

2007-01-09 11:31:03 · 1 answers · asked by Coolbear4 4

Hey, I need the following information on This Famous chemist -Joesph Gay-Lussac

1)where he did his work
2) his accomplishments
3)A qoute by him
4) where he went to school/college
5)If he had any other jobs like teacher,lawyer etc.
6) His family information such as wife/children/parents
7) Two other events occuring the same time he was famous
8) Did he work with any other scientists?
9) What he did, did anything change over the years?
10) What obstacles did he face when doing what he did.
Thanks alot I appreaciate it!@

2007-01-09 11:30:29 · 1 answers · asked by not857 1

how do you find the mass, weight and gravity on diff. planets?? PLEASE HELP ME!!!

2007-01-09 11:27:53 · 1 answers · asked by Italia 1

magnesium ribbon + hcl 6 mol/L
+ h2so4 3 mol/L
+ ch3cooh 6 mol/L

Can you explain in terms of dissociation, and wat not.
Also, how would I find the rate from the rate law for each reaction.

*we used a calibrated gas collection tube to measure the h2 released --> my results: hcl fastest....

2007-01-09 11:21:56 · 2 answers · asked by chemistry 1

Calculate the molarity of a hypobromide solution if 10.00 mL of the OBr^1- (aq) solution requires 3.52 mg of ammonia for a complete reaction.

2 NH3 (aq) + 3 OBr^1- (aq) --> N2 (g) + 3 Br^1-(aq) +3 H2O.

And why is it called hypobromite?

Thanks!

2007-01-09 11:10:50 · 1 answers · asked by Anonymous

INCLUDING:::

molecule movement+
attraction between molecules+
ability to change shape&volume

2007-01-09 11:06:15 · 2 answers · asked by bubbless221 2

2007-01-09 11:04:52 · 7 answers · asked by BLAK 2

My science fair experiment is a bit complicated (Does magnetic force pass through ionic and molecular solutions...meaning salt and sugar water). But, other then the amount of salt and sugar I can't figure out what to measure and how to measure it...is there anything I can measure other then the amount of sugar/salt?

2007-01-09 10:58:37 · 1 answers · asked by Ellie L. 2

Is this phiysical or a chemical property?

1. Antioxidants are used as food preservations in margrine
2. White phosphorous glows in the dark
3. White phosphoro ignites easily
4. Graphite is a good lubricant
5. Gold doesn't react with water.
6. Strontium reacts with water.
7. Gallium has a melting point of about 86 degrees F.

There were many more that I did by my self. Thanks in advance! :)

2007-01-09 10:54:52 · 4 answers · asked by Aanchi11 2

2007-01-09 10:50:05 · 3 answers · asked by Ziamor 1

If any one knows the answer/how to do this please post!!

2007-01-09 10:46:17 · 1 answers · asked by Meghan H 2