I'm doing a balanced chemical equation for the reaction that occurs when solid barium hydroxide dissolves in water. Have I done this right (sorry not yet got to grips with the subscripts so saying subn when I need to!)

 

Ba(OH)sub2 --> Ba2OHsub2

 

If I have gone the wrong way can someone direct me where I have gone wrong so I can understand what I am not doing.

 

Thank you

not technically correct. rewrite as

 

Ba(OH)2 --> Ba2+ + 2OH-

when those elements are combined with water, they simply become ionized and the bonds between the barium and hydroxide are ripped apart.

Ba(OH)2 --> Ba2+ + 2OH-

 

Correct, but by putting (s) and (aq), it tells the reader that the material is in the solid form or in the aqueous form.

why not just put [math]Ba(OH)_{2(s)} + (aq) \rightarrow Ba(OH)_{2(aq)}[/math]. Far simpler and does exactly what is says on the tin.

why not just put [math]Ba(OH)_{2(s)} + (aq) \rightarrow Ba(OH)_{2(aq)}[/math']. Far simpler and does exactly what is says on the tin.

 

Because that's not what the homework requires; whilst it's adequate shorthand, it's useless for establishing a grounding in the mechanisms of aqueation.

both imply the same thing. it's like drawing organic compounds

the notation C-C-C implies propane.

the notation

H H H

H-C-C-C-H

H H H

also implies propane. both are accurate. both mean exactly the same thing.

eh pretend that second propane structure actually worked...

reading through this is actually very helpful so thank you for continuing this thread - I've got some compounds to figure too lol

eh pretend that second propane structure actually worked...

If you use the [code/code] BB tags, you can make a block of monospaced text. All characters will take up the same horizontal space, and spaces will not be collapsed.

 

Handy for things like propane structure

 H H H
H-C-C-C-H
 H H H

 

Example ^

 

Press the quote button to see what I did.

good call. thanks