solid copper(ii) sulfide reacts with aqueous nitric acid to produce aqueous copper(ii) sulfate, liquid water, and nitrogen dioxide gas
2007-03-01 13:29:43 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
CuS + HNO3 -> CuSO4 + H2O + N2O
CuS + 2 HNO3 -> CuSO4 + H2O + N2O
and that's it!
2007-03-05 09:34:56 · answer #1 · answered by Kurt 2 · 0⤊ 1⤋
Is Copper Aqueous
2017-01-20 20:57:10 · answer #2 · answered by josephine 3 · 0⤊ 0⤋
Sort out the oxizided and reduced species.
S(-1) to S (+6)
N(+5) to N(+4)
Do the electron thing, use H+ to supply hydrogen for water for excess oxygens.
S-2 + 4H2O -> SO4(=)+ 8H+ + 8e
NO3- + 2H+ +e -> NO2(g) + H2O
This may not be exactly the way they show in your school
Multiply reduction eqtn (#2) by 6 and add them up
S-2 + 8 NO3- + 8H+ -> SO4(=) + 8NO2(g) + 4 H2O
2007-03-01 13:46:21 · answer #3 · answered by cattbarf 7 · 1⤊ 0⤋