Help with chemistry please?

Lambo

New member
I honestly have no idea how to solve these or ever start. But please don't give me the answers, I want to know HOW to do it:

- A copper metal reacts with silver nitrate to produce copper (II) nitrate and silver.
To carry out this experiment, a coil of copper is dropped into a solution of silver nitrate.
The mass of the copper coil before the reaction is 2.36g. The mass after the reaction is 1.08g.
How much mass of silver is made?

- How much could the mass of Zn be is the mass of C is 6.50g and the mass of ZnO is 10g?
 
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