327. According to the degrees of oxidation and, if possible, their changes in the process of redox reactions, determine which of the substances whose formulas are given can exhibit: a) only oxidizing properties; b) only reducing properties; c) both oxidizing and reducing properties.
Based on the electronic equations, arrange the coefficients in the equation for the reaction proceeding according to the indicated scheme.
task number Substance formulas Reaction scheme
327PbO2; PbSO4; Pb(OH)2; Pb PbO2 Pb H2SO4→PbSO4 H2O
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