Question

write down the physical state of reactants and products in the following reactions: SO2+2ah2S ----3S+2H2O
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Answer 1

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.

SO

2

+H

2

S→2H

2

O+3S

+4 -2 0

As H

2

S oxidises, so its reducing agent.