Choose the products that complete the reaction. The chemical equation may not be balanced.
NaHCO3 + HC2H302 → ?
NaC H202 + H2O
NaC2H2O2 + CO2 + H20
NaC2H2O2 + H2
DONE

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).