[helpmeme]

Hello, I need to know how to set up and balance an equation from these problems.  I only need the balanced equation not the rest of it.  I can't for the life of me figure out how to set up an equation for these!!

1. How many grams of copper (II) nitrate would be produced from 0.90 g of copper metal reacting with excess nitric acid?  (I just need balanced equation and how to do it)

2.  When copper (II) nitrate reacts with sodium hydroxide, copper (II) hydroxide is produced.  How many grams of copper hydroxide can be prepared from 2.7 g of copper (II) nitrate and excess sodium hydroxide? (once again i just need explanation of how to balance this equation and set it up)

THANK YOU SO MUCH!

[Arkcon]

OK, can you write the chemical formulas for the products and reactants in each reaction? 

[helpmeme]

 Well all I know is for #1 it would be Cu + NO3 -> and i have no idea after that...

#2 I thought it would be Cu(NO3)2 + NaOH -> and again im lost past this.. I guess I need to know how to get the product side.

[Arkcon]

Well all I know is for #1 it would be Cu + NO3 -> and i have no idea after that...

#2 I thought it would be Cu(NO3)2 + NaOH -> and again im lost past this.. I guess I need to know how to get the product side.

They also identify the products, or at least some of them, you can guess the rest, also your formula for nitric acid is wrong, the compound you list isn't charge balanced it needs ... something ... something you get when you put reactive metals into acid ...

[ARGOS++]

Dear Helpmeme;

Both Questions are normal “Stoichiometry Problems”.
So you may follow the Recipe/Scheme from the Topic:  "Stoichiometry Problem”
(With an Example Diagram: How to do “Stoichiometry Problems”.)

For your first Problem:
Ask “Wiki” for the correct formula of “Nitric Acid”, and then you know at least both Reactants and one of the Products! Let this be your starting point for the unbalanced Reaction Equation.
(There is even more at that page for you.)

For your second Problem:

2.  When copper (II) nitrate reacts with sodium hydroxide, copper (II) hydroxide is produced.  ... 

The question is giving you already one Product of your reaction.

So try to fit all these together to build as much as possible of your both Reaction Equation.

I hope this is at least of help for a good starting point.

Good Luck!
                    ARGOS⁺⁺