What is involved in redox reactions A. the transfer of electrons between reactants
B. the bonding of ions to form chemical compounds
C. the addition of water to break down food macromolecules
D. the breaking down of water into hydrogen and oxygen atoms

B

Explanation:

Redox reactions are comprised of two parts, a reduced half and an oxidized half, that always occur together. The reduced half gains electrons and the oxidation number decreases, while the oxidized half loses electrons and the oxidation number increases.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

c. orbital shape i hope this is correct