Question

What would be the chemical formula when 5 drops of NO3- anion is mixed with an equal volume of conc. H2SO4 then a piece of copper wire is dropped and warmed gently? There is also observable color of the gas evolved.

Answer 1

First find the nature of the reaction between copper metal Cu and nitrate ions NO3–

Answer 2

Well, actually, that's also one of the answers that I need for my acticity sheet in Chem Lab. ._.

Answer 3

*activity

Answer 4

Well, what branch of chemistry is it?
Combustion, acid-base, redox... ?

Answer 5

the gas evolved will be nitrogen dioxide NO2 which is brown in color.