The Clemmensen reduction is catalyzed by a zinc amalgam and one of these substances, characterized by Lux and Flood as oxide ion acceptors. Another type is produced using a vanadium oxide catalyst in the contact process. Aqua regia is a mixture of two of these substances. H3PO4 is a triprotic one, while HCOOH, or "formic," is monoprotic. Defined as electron receptors by Lewis and by Brønsted and Lowry as proton donors, they yield hydrogen ions in solution, according to the Arrhenius definition. For 10 points, name these substances with pH below 7, often contrasted with bases.
The Clemmensen reduction is catalyzed by a zinc amalgam and one of these substances, characterized by Lux and Flood as oxide ion acceptors. Another type is produced using a vanadium oxide catalyst in the contact process. Aqua regia is a mixture of two of these substances. H3PO4 is a triprotic one, while HCOOH, or "formic," is monoprotic. Defined as electron receptors by Lewis and by Brønsted and Lowry as proton donors, they yield hydrogen ions in solution, according to the Arrhenius definition. For 10 points, name these substances with pH below 7, often contrasted with bases.
The Clemmensen reduction is catalyzed by a zinc amalgam and one of these substances, characterized by Lux and Flood as oxide ion acceptors.
{acids} [accept {HCl} or {hydrochloric acid} in first sentence; accept word forms]