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hey-- how do I balance the following equations:

1.) Cu + HN03 -> Cu(NO3)2 + NO2 + H2O

2.) Cu(NO3)2 + NaOH -> Cu(OH)2 + NaNO3

By Bubbloy (Bubbloy) on Wednesday, January 21, 2004 - 07:48 pm: Edit

1.) Cu +4HNO3->Cu(NO3)2 + 2NO2 +2H2O

2.) Cu(NO3)2 + 2NaOH -> Cu(OH)2 +2NaNO3

By Bubbloy (Bubbloy) on Wednesday, January 21, 2004 - 07:49 pm: Edit

that's how we do

By Bonjovichick (Bonjovichick) on Wednesday, January 21, 2004 - 08:54 pm: Edit

I need way help in Chemistry. What are some "study ways" that would help me?

By Sailor_420 (Sailor_420) on Sunday, January 25, 2004 - 12:19 pm: Edit

I guess the best thing would be to jsut read each unit/topic area/chapter once, see what all you understand and make sure you remember that. What you don't understand, ask someone about it, and get it clarified. THe best way to study chem is to remember all the main headings and write down all the details under that main heading, with the book closed, and then making sure u've got everything down right.
On balancing reactions, you might want to read up on two methods:
Oxidation Number Method
Ion-electron half-reaction method.
Atleast, that's how I learnt them. Really standard, really useful

By Bullrider7788 (Bullrider7788) on Wednesday, January 28, 2004 - 04:34 am: Edit

If you want help in Chemistry, LEARN HOW TO USE THE PERIODIC TABLE. It is by far the greatest cheat sheet in institutionalized education! Learn all the patterns and trends, etc. and it makes Chem A LOT easier!

By Morgantruce (Morgantruce) on Wednesday, March 17, 2004 - 08:15 am: Edit

Bullrider,
Now you've went and done it! The secret is out.

I've always thought that if every other branch of science and field of knowledge had the "equivalent of chemistry's periodic table"... oh, how easy things would be!

Most students (and some teachers too) think the periodic table is loathsome---never catching on to the brilliant tool that it is. Yes, it is the most clever cheat sheet ever devised. Like many cheat sheets, by the time you finish creating them, you've mastered the subject.

By Gemj (Gemj) on Tuesday, April 20, 2004 - 06:26 pm: Edit

i know your probably sick of theis question, but could you please explain balancing equations in a more indepth answer...eg, you can see that hydrogen only has 2 where it needs to be 4 (with out sounding like a thick kid!) THANKYOU.GEM