Chemistry
Favorites|Homepage
Subscriptions | sitemap
HOME > Chemistry > Chemistry

Chemistry

What are the 5 elements of the world

ive heard of water, fire, air, and earth. but there is a 5th one. just what is it?-You must be thinking of Space.... Its referred to as Ether and Void as well. Just simply anything that takes up all t

Whats the electronic configuration of the copper ion Cu2+

Does anyone know for sure, a few answers came up some being: [Ar]3d74s2 [Ar]4s0 3d9 [Ar] 3d10 4s2 4p1 Any know for sure which one is correct and why? These maybe wrong above, not positive.-Definit

Anyone good at CHEMISTRY equations and formulas? 5STARS 10pts

Please n thanks 1) What is the formula for Magnesium acetate? 2) Write a balanced equation for the following reaction: Iron + fluorine -----> iron (III) fluoride 3) Using the equation from #2 de

Chemistry: stoiometric problem

A chemist has a beaker containing lead nitrate, Pb(NO3)2, dissolved in water. The chemist adds solution containing sodium iodide, NaI, and a bright yellow precipitate is formed. The chemist chemist co

***easy points*** Does the cathode gain or lose mass

Im doing an assignment on the electrolysis of copper. does the copper cathode electrode gain or lose mass during this process? or is it the opposite?-At the cathode, reduction is going on. This means

Is this a good reason to quit Yahoo in disgust (chem board)

I answered a question is it possible to see atoms with a microscope. I answered yes in a scanning tunnel electron microscope and provided links to IBM San Jose quantum corral pix which are quite cool

What is the expected volume of the balloon

magnesium metal reacts with hydrochloric acid to form aqueous magnesium chloride and hydrogen gas. An excess of magnesium is reacted with 20.0 mL of 3.00 M hydrochloric acid, and all of the hydrogen i

How much energy was released when burned

The total volume of hydrogen gas needed to fill the Hindenburg was 2.00 x 10^8 L at 1 atm and 25 C. How much energy was release when it burned? 2 H2(g) + O2(g) ---> 2 H2O(l)delta H = -572 kJ-If you h

What is the molar concentration of I– in 1 liter of a saturated water solution of PbI2 if the Ksp of lead iodi

What is the molar concentration of I– in 1 liter of a saturated water solution of PbI2 if the Ksp of lead iodide is 1.4 × 10–8?-Ksp = 1.4x10^-8 = [Pb 2+][I-]^2 if we look at an ICE chart, we see the

Chemistry Question..

1) What volume of a 10 mol/L H2SO4 solution is needed to make 1 L of 1.0 mol/L solution of H2SO4? Thanks :P-Your final solution contains n(H2SO4) =1.0 mol/L * 1 L = 1.0 mol of sulfuric acid which is

How many grams (g) of sodium chloride should be dissolved

How many grams (g) of sodium chloride should be dissolved in 615.9 g water to produce a solution that boils at 1.008 ºC above the boiling point of water?Kb= 0.512 ºC/molal. Use the ideal vant Hoff fac

How many faradays are required to deposit the vanadium

An aqueous solution of an unknown salt of vanadium is electrolyzed by a current of 2.50 amps for 1.50 hours. The electroplating is carried out with an efficiency of 95.0%, resulting in a deposit of 2.

Chemistry Questions.

How many moles of HCl are required to make 500 ml of a 3.0 mol/L solution of HCl? Thanks guys!!-1.5 moles is the answer. Explanation: 3mol/L, you have 500mL= .5 (a half-liter) ,so divide 3 moles by

Oxidation number!! plzz help

(co(h2o)6)^2+ co2(so4)3 (cocl4)^2- i have the answers .. 2+ 3+ and 2+ can you explain for each how to get it?? step by step plz.-First H2O is neutal ligand, so whatever the charge on the complex th

Chemistry:Single displacement reactions

when combining metal and water, my book says it can either have a product of a metal oxide or metal hydroxide, but it didnt explain why??? for example: Na + H2O ---> H2 + NaOH Fe + H2O ---> H2 + Fe3O
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .