в)
+Q ==> exotermic
C - solid and O2 - gas ==> heterogenic
C - 4e(-) = C(4+)
O2 + 4e(-) = 2O(2-)
==> Oxydation-Reduction reaction
в)
+Q ==> exotermic
C - solid and O2 - gas ==> heterogenic
C - 4e(-) = C(4+)
O2 + 4e(-) = 2O(2-)
==> Oxydation-Reduction reaction