Chemistry - August 2007

give me a couple of examples of solid, liquid and gas

the one with the best answers will get 10 points

2007-08-30 13:19:14 · 16 answers · asked by the hottie 2

2007-08-30 13:06:57 · 11 answers · asked by stacytalamantes@sbcglobal.net 2

2007-08-30 13:04:46 · 3 answers · asked by Anonymous

can some one help me list these units in order from largest to smallest
1dm3
1uL
1mL
1L
1cL
1dL

2007-08-30 12:10:24 · 1 answers · asked by Anonymous

please
please help

2007-08-30 10:05:55 · 5 answers · asked by Anonymous

Assuming that such an equation results in a precipitate can there be only be one precipitate produced, or sometimes do such equations result in more than one precipitate being produced?

2007-08-30 10:04:46 · 3 answers · asked by Gideon 1

I'm doing a science fair project , in which i plan to test how different acidities of water will effect the lifespan of triops (these little aquatic creatures). What kind of acid should i use? (and nothing like coke, or orange juice, or battery acid that will kill them immediately)

2007-08-30 09:29:10 · 5 answers · asked by swtpeach725 3

2007-08-30 09:12:06 · 4 answers · asked by Anonymous

I have to find out why pure owygen is so flammable for a term paper. Please give answer as if you were talking to a 5 year old.

2007-08-30 08:31:50 · 6 answers · asked by Nate Dog 2

2007-08-30 07:57:01 · 4 answers · asked by mommyof3 2

I take an intro level chem class and this is one of the problems we have for homework,

1.) For each of the following compounds, write the formula and name for any polyatomic ions which might be present:

(the numbers are supposed to be subscripted, Y! Answers isn't letting me subscript them)

CaCl2
AlCl3
KCN
Ba(OH)2
NaClO3
FeBr2
AgNO3
NaMnO4
K2CrO4
(NH4)2SO4
Ca3(PO4)2
NaHSO4
MoO2
CaCr2O7

I'm not asking for answers, I'm just wanting to know how I would find the answers given those compounds?

2007-08-30 07:24:10 · 5 answers · asked by Merk K. 1

My husband wants to solder a couple of silver linking rings into a bracelet for me. He has two soldering irons, one is a 25 watt, the other is 50 watts and uses both of these for soldering brass or nickel in modelling. We are not sure if either would be suitable for soldering silver. Can anyone help, please?

2007-08-30 07:10:34 · 7 answers · asked by Anonymous

2007-08-30 07:08:41 · 5 answers · asked by Pebbles 5

I'm looking for O2 ice on the internet and I don't know what to search under.

2007-08-30 06:29:02 · 4 answers · asked by Suzanne L 1

2007-08-30 06:03:27 · 8 answers · asked by treneecohens 1

Why wouldn't the lone electron be in the same p orbital as the lone pair of an sp3 hybridized methyl cation?

Honestly, I just really wanted to see a Q in the chemistry section that wasn't straight off of a gen chem problem sheet.

2007-08-30 05:28:23 · 3 answers · asked by Jeffrey Theta 1

Title of project : To prepare a portfolio on the history of soap manufacturing.

Question : Today, we bathe with soap and wash our clothes and dishes with detergent. We take soap and detergent for granted. We strated using soap only in the 1850s. Detergent wasinvented in the 1940s.Before that, clothes were washed through beating them with rocks at a nearby stream. People had to bathe without soap because soap was very expensive.

Procedure : Collect data on soap manufacturing from the early days until its large-scale productions in industries. You may refer to books, magazines, encyclopaedias, or Internet.

I've already collected the infomation about history of soap and soap manufacturing/process of making soap. All I need now is just the conclusion. Thank you for all of you who willing to read this and help me. Thank you very much.

2007-08-30 04:56:51 · 2 answers · asked by Mr. Cool 2

What is the Specific Heat Capacity of aqueous Sodium Chloride in terms of Joules/(grams * degree Celsius)?

2007-08-30 03:42:02 · 2 answers · asked by koala_beng 2

66.14 ( ) (987 ÷ 7) = 9,325.74
use operator place of ( )

2007-08-30 03:36:07 · 3 answers · asked by nilesh g 1

2007-08-30 03:35:14 · 1 answers · asked by FREAK OF NATURE 2

if the limestone is 98.20% pure and the iron ore contains 12.80% SiO2 by mass? (Note: SiO2 (s) + CaCO3 (s) ---> CaSiO3 (s) + CO2 (g) )

2007-08-30 03:18:41 · 2 answers · asked by danz2289 1

What is the volume of the container, using a density of 1.00 g/cm^3? (in cubic cm)

2007-08-30 03:13:33 · 7 answers · asked by danz2289 1

I tried a lot but couldn't solve these questions, i'd be really glad if u could help me with at least one question among these:
(ATLEAST ONE !!)

1) 20 mL of a solution of mixture of NaOH and Na2CO3 was first titrated with phenophthalein and M/10 HCl. 15 mL of HCl was required for the end point. After this methyl orange was added and 5 mL of same HCl was again required for next end point. Find out amounts of NaOH and Na2CO3 in the mixture.

2) 44.4 g mixture of Ag2CO3 and NaHCO3 on strongly heating gives a certain volume of gases. The volume of gases at STP reduced by 4.48 litres when treated with KOH. The volume is further reduced by 1.12 litres by treatment with alkaline pyrogallol. Find the % composition of Ag2CO3 and NaHCO3 in the mixture.

3) What volume of 0.1M Mn3O4 solution will be required to completely react with 20 mL of 0.01 M solution of Fe3O4 in acidic medium of H2SO4 such that all the Mn3O4 is converted into MnSO4 & Fe3O4 converted to Fe2(so4)3 ??

2007-08-30 02:40:44 · 1 answers · asked by dren 3

2007-08-30 01:56:35 · 3 answers · asked by sassy050205 1

I bought a 'Qwicksilver' electrolytic cleaning plate. It acts with sodium carbonate to clean all kinds of metal and jewellery. Is this the same as Washing Soda?

Also, how does sodium carbonate differ from bicarbonate of soda?

2007-08-29 23:28:35 · 10 answers · asked by Songbird 3

A sample of NE gas occupies a volume of 12.0 L at STP. If the same number of Ar atoms (as there are Ne atoms in the original sample) were placed in a 24.0 L container and heated to 300K, what would the pressure inside the container be?

2007-08-29 19:01:08 · 1 answers · asked by ecstyle483 1

How many mL of water must be added to 45.0 mL of a 1.25 M HCL (aq) to lower the concentration to 1.00 M?


Do you just set it up as 45mL/1.25 = X/1.00M and X=36?
That seems too easy to be true. How would you approach this type of question?

2007-08-29 18:58:25 · 2 answers · asked by ecstyle483 1

I don't get how it's formed....what the premise is ...(why and how are we finding pH from pKa, etc...)

I just don't understand it....can someone clear it up?

2007-08-29 18:13:15 · 2 answers · asked by Anonymous

how many ml is 60g of potassium nitrate

2007-08-29 18:08:36 · 2 answers · asked by Anonymous

What is the biggest endothemic reaction we ever produced?

2007-08-29 17:42:22 · 1 answers · asked by cpc26ca 1