Yahoo Clever wird am 4. Mai 2021 (Eastern Time, Zeitzone US-Ostküste) eingestellt. Ab dem 20. April 2021 (Eastern Time) ist die Website von Yahoo Clever nur noch im reinen Lesemodus verfügbar. Andere Yahoo Produkte oder Dienste oder Ihr Yahoo Account sind von diesen Änderungen nicht betroffen. Auf dieser Hilfeseite finden Sie weitere Informationen zur Einstellung von Yahoo Clever und dazu, wie Sie Ihre Daten herunterladen.
Salcan
How many cl ions in 0.10 CaCl2?
How many Cl ions are in 0.10 M CaCl2?
Please explain :) Thanks!
4 AntwortenChemistryvor 10 JahrenI need help with neutralization.... help?!?
The number of moles of Ca(OH)2 needed to neutralize 4 moles H3PO4
I need to check my work... please explain the way YOU did it... Thanks :]
2 AntwortenChemistryvor 10 JahrenFinding the number of moles? Please help!?
The combustion of propane (C3H8 ) in the presence of oxygen produces CO2 and H2O
C3H8 + 5 O2 --> 3 CO2 + 4 H2O
When 2.5 mol of oxygen are consumed in the reaction, _____ mol of CO2 are produced.
Please explain! Thanks a lot :)
2 AntwortenChemistryvor 10 JahrenThe total numbers of electron transferred...?
The total numbers of electron transferred in the following reaction is :
2Al + 3Br2 --> Al2Br6
How can you tell?
1 AntwortChemistryvor 10 JahrenThe oxidation state of Cr in...?
What is the oxidation state of Cr in Cr2O7^2-?
How do you do it and whats the answer? Thanks a bunch! :)
3 AntwortenChemistryvor 10 JahrenChemistry: Neutralization?
Can anyone do/explain the following:
Write the balanced equation for the following reaction: Neutralization of NaOH with H2SO4.
Thanks a lot!
1 AntwortChemistryvor 10 JahrenStuck on last chem question of review packet; please help me!?
U + 3UIF3 --> UF6 + 3CIF
What is mass of UF6 is produce by the reaction of 10 grams of Uranium (U) with 8 grams of CIF3???
1 AntwortChemistryvor 10 JahrenCan some one help/check my answer? (Gas law)?
Balloon filled with 1750 ml He at pressure 745mmHg at 23 degrees C. When released, the balloon rises to where the pressure is 655 mmHg and the temperature is 10 degrees C, what is the volume of He at this point?
So I got 1.84 atm after doing the math (converting) and using the general gas law.
1 AntwortChemistryvor 10 JahrenTitration HW help!?!?!?!?
What volume of 0.210 M KOH is required to titrate 25.0 ml of 0.100 M H3PO4
2 AntwortenChemistryvor 10 JahrenMolarity Question, please help!?
The number of moles of sodium ions in 200 ml of 5 molar Na2S (aq) ?
2 AntwortenChemistryvor 10 JahrenHelp with Molarity Question please!?
What is the molarity if the resulting solution when 80 ml of 15 M HNO3 is made up to 0.50L by adding water?
1 AntwortHomework Helpvor 10 JahrenHelp with Molarity Question please!?
What is the molarity if the resulting solution when 80 ml of 15 M HNO3 is made up to 0.50L by adding water?
2 AntwortenChemistryvor 10 JahrenNumber of moles of oxygen in 155 g Al(OH)3 [Got the step but not sure if it's right?]?
Determine the Number of moles of oxygen in 155 g Al(OH)3.
So I think its....
155g Al(OH)3 * 1mol/78.03 * 6.02 X 10^23/1 mol = 1.195*10^24? Yay or Nay? Can you explain if nay please? Thanks! :)
3 AntwortenHomework Helpvor 10 JahrenNumber of moles of oxygen in 155 g Al(OH)3 [Got the step but not sure if it's right?]?
Determine the Number of moles of oxygen in 155 g Al(OH)3.
So I think its....
155g Al(OH)3 * 1mol/78.03 * 6.02 X 10^23/1 mol = 1.195*10^24? Yay or Nay? Can you explain if nay please? Thanks! :)
4 AntwortenChemistryvor 10 JahrenHow many grams of water can be formed from 25.0 grams of Oxygen, O2?
Need help with this homework problem,
How many grams of water can be formed from 25.0 grams of Oxygen, O2?
if you can explain the steps that would be great if not then the answer would work (I'll try different methods until I get the answer) Thanks so much!
3 AntwortenHomework Helpvor 10 JahrenHow many grams of water can be formed from 25.0 grams of Oxygen, O2?
Need help with this homework problem,
How many grams of water can be formed from 25.0 grams of Oxygen, O2?
if you can explain the steps that would be great if not then the answer would work (I'll try different methods until I get the answer) Thanks so much!
1 AntwortChemistryvor 10 JahrenAny one know ho to Balance chemical reactions? (10pts)?
Can anyone balance this and show me how?
C7 H10 N + O2 ---> CO2 + H2O + NO2 ( all numbers are subscripts)
5 AntwortenChemistryvor 1 JahrzehntQue faire au Québec pendant l'été et en hiver?
Salut, je suis américain, de sorte que mon français est horrible, désolé! Mais je voudrais savoir ce qu'il ya à faire à Montréal et au Canada français pendant que je visite? Je pensais à aller à l'été, mais je pourrais aller pendant l'hiver. Par la façon dont je suis dix-huit ans. Je vais aussi rester à proximité de Montréal. Merci d'avance!
14 AntwortenQuebecvor 1 JahrzehntWhich state is better: Calif or Florida?
I love traveling and the outdoors! I love the beach, I love the mountains, lakes, rivers, and I also like the desert (I guess you can say I'm an outdoors guy). I also like winter and snow but I don't like it for too long, only a 1 day thing. Lastly I also like the HOT weather in the summer ONLY. I have never been to Florida, but I hear the water is warm, and California has cold water so it takes a while to get in the beach. I don't know but I want to know what people think about both states, someone who has been to both, Thanks in advance!
4 AntwortenOther - United Statesvor 1 JahrzehntI think I have a virus, every time I search something on google it takes me to www.google.co.uk?
I am always taken to www.google.co.uk And I don't even live in the UK I live in California! At first it would redirect me to different pages when I would click on a link, but it seems to have stop doing that. But it continues to warn me not to sign into my Gmail, that there may be a virus or something (this has never happened). Now I did have another virus but I took it off with Malwarebytes' and now I don't know how to take this one off! I have tried reinstaling Malwarbytes but it does not work. By the way I have a small netbook (I don't know if this will be useful) Spyware doctor and norton ss did not help either. Thanks in advance!
2 AntwortenMSNvor 1 Jahrzehnt