Chemistry, 11.10.2019 01:00 binava

Which equation represents an oxidation-reduction reaction?
a. hcl + koh? kcl + h2o
b. 4hcl + mno2? mncl2 + 2h2o + cl2
c. 2hcl + caco3 ? cacl2 + h2o + co2
d. 2hcl + fes ? fecl2 + h2s?

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Which equation represents an oxidation-reduction reaction?
a. hcl + koh? kcl + h2o
b....