Help please! (1 Viewer)

[Chachamaru]

What is the Atomic Symbol for
Potassium Hydroxide and Potassium Sulfate???
If possible please send me via PM if there is one on this site lol, (new here)
or just please post here so i can read it
Thank you

 

[watatank]

Why didnt you post this in the chemistry/science forum in the hsc part...?

KOH ---> potassium hydroxide

K2SO4---> Potassium sulfate

 

[Chachamaru]

oh i thought no one would read it so i made a whole new thread
thank you by the way ^_^

 

[Chachamaru]

How do you Balance this HELP!

FeS2 + O2 = Fe2O3+SO2

&

NH3+ O2 = N2 +H2O

 

[Chachamaru]

HEY!
Does anyone know what does in phrase and out of phrase mean in Physics?

 

[hysteria85]

How do you Balance this HELP!

FeS2 + O2 = Fe2O3+SO2

&

NH3+ O2 = N2 +H2O

4FeS2 + 11O2 = 2Fe2O3 + 8SO2

&

4NH3 + 3O2 = 2N2 + 6H2O

You have to double all coefficiants from what you first think they are so that the oxygen is balanced properly. Thats where many people get confused.

HEY!
Does anyone know what does in phrase and out of phrase mean in Physics?

In and out of *phase* refers to waves. Waves that are in phase are aligned exactly together ie. their crests and troughs occur at the same time. Waves that are out of phase are not aligned. In phase waves cause constructive interference, waves that are 180 degrees out of phase 'cancel' each other out etc...

example- three phase power. The three waves in the picture are out of phase with each other.

I can't really explain more than that without more diagrams, because I suck at explaining things.

 

[sle3pe3bumz]

hmm .. another person who goes to my school and does physics ! im pretty sure your asian .. & your in my chem class .. simon ? lol

 

[Chachamaru]

Yes Phase
thats the one thank you.

 

[Chachamaru]

What does (OH)2 mean for Chemistry?

 

[hysteria85]

What does (OH)2 mean for Chemistry?

OH is the symbol for a hydroxide molecule, so (OH)2 means 2 hydroxides. eg Na(OH)2 - sodium hydroxide - 2 hydroxides are needed to make the compound stable.

 

[Chachamaru]

Cool, Thank you!

 

[FromDeeEast]

really isnt all this information in your book?

your not going to learn if people spoon feed you the answer i am afraid.

 

[amulet888]

Yeah stop wasting all your time looking at Hentai, and start reading at least the first 3 pages of your textbook