Submitted by reasonable kzr on Sat, 2013-06-08 13:35
Hi.., please can anyone help me to know wheather a hollow and a light steel cylinder filled with helium can rises? if YES describe the process involve? thanks.
Submitted by bmcfarland96 on Mon, 2013-05-27 21:56
I simply want to know what tetraoxide is. I dont remember the prefixes for elements in chemical equations.
Submitted by Sadiya24 on Sun, 2013-05-12 07:40
PLz PLz PLz answer this question n plzzzzzzzzzzzzzzzzzzzz explain me how to solve it plzzzzzzz
Submitted by Joeldan123 on Sun, 2013-05-05 21:02
I know how to draw the lewis structures. Cation means you have to subtract one electron and anion means you have to add one but this confuses me. I tried doing this but my answers were wrong
Submitted by Thunthorian on Fri, 2013-04-26 21:17
I need help in creating the Olamite periodic table. I am having troubles doing this. The webpage where you can see the 54 elements are in this link:
http://courses.fresno.edu/jpdick/old/chem1/Lab%205%20-%20Alien%20Periodic%20Table.pdf
It also gives you the information that you would need to find them. DISREGAURD ALL INFORMATION AFTER "Olamite Electromotive Series" and "special characteristics of some elements".
However, please note that common reactions are:
Akumena, Corana, and Hammena all form XFl4 compounds that dissolve in Aq2Ac. Mishpakton, Doron, and Toldotan all react with Ac to form X2Ac.
No need to answer any of the questions under the procedure.
Thank you so much!
John
Submitted by Thunthorian on Fri, 2013-04-26 21:16
I need help in creating the Olamite periodic table. I am having troubles doing this. The webpage where you can see the 54 elements are in this link:
http://courses.fresno.edu/jpdick/old/chem1/Lab%205%20-%20Alien%20Periodic%20Table.pdf
It also gives you the information that you would need to find them. DISREGAURD ALL INFORMATION AFTER "Olamite Electromotive Series" and "special characteristics of some elements".
However, please note that common reactions are:
Akumena, Corana, and Hammena all form XFl4 compounds that dissolve in Aq2Ac. Mishpakton, Doron, and Toldotan all react with Ac to form X2Ac.
No need to answer any of the questions under the procedure.
Thank you so much!
John
Submitted by Thunthorian on Fri, 2013-04-26 21:15
I need help in creating the Olamite periodic table. I am having troubles doing this. The webpage where you can see the 54 elements are in this link:
http://courses.fresno.edu/jpdick/old/chem1/Lab%205%20-%20Alien%20Periodic%20Table.pdf
It also gives you the information that you would need to find them. DISREGAURD ALL INFORMATION AFTER "Olamite Electromotive Series" and "special characteristics of some elements".
However, please note that common reactions are:
Akumena, Corana, and Hammena all form XFl4 compounds that dissolve in Aq2Ac. Mishpakton, Doron, and Toldotan all react with Ac to form X2Ac.
No need to answer any of the questions under the procedure.
Thank you so much!
John
Submitted by Thunthorian on Fri, 2013-04-26 19:10
I need help in creating the Olamite periodic table. I am having troubles doing this. The webpage where you can see the 54 elements are in this link:
http://courses.fresno.edu/jpdick/old/chem1/Lab%205%20-%20Alien%20Periodic%20Table.pdf
It also gives you the information that you would need to find them. DISREGAURD ALL INFORMATION AFTER "Olamite Electromotive Series" and "special characteristics of some elements".
However, please note that common reactions are:
Akumena, Corana, and Hammena all form XFl4 compounds that dissolve in Aq2Ac. Mishpakton, Doron, and Toldotan all react with Ac to form X2Ac.
No need to answer any of the questions under the procedure.
Thank you so much!
John
Submitted by lrbelflower on Tue, 2013-04-23 10:34
I may have put this in the wrong category and I'm sorry in advance if I did.
Complete and balance the following chemical equations.
NaOCH3(s)+H2O(l) --> (I think that is supposed to be NaHCO3, but on my homework it is written as NaOCH3)
CuO(s)+HNO3(aq) -->
WO3(s)+H2(g) -->
NH2OH(l)+O2(g) -->
Al4C3 (s)+H2O(l) -->
Co2(g)+OH-(aq) -->
NaHCO3(s)+H+(aq) -->
CaO(s)+C(s) --> (heat is required)
C(s)+H2O(g) --> (heat is required)
CuO(s) +CO(g) -->
I honestly have no idea where to go with these half equations. I can eailty balance full equations, but I don't know where to begin on these, and my notes from class provide zero help. I don't know how I'm supposed to know what comes after the arrow.
Thank you in advance.
Also, when you work out the problem, could you please include the phases? Thank you again.
Submitted by seraph on Wed, 2013-04-17 09:27
than electro negative elements?
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