Science / Chemistry / Oxidizing Agent: A reactant that removing electrons from other reactants in a chemical reaction. Oxidizing agents cause other substances to be oxidized in chemical reactions while they themselves are reduced. For example, nitrate ion is an oxidizing agent in the following reaction: Cu(s) + 4 H+(aq) + 2 NO3-(aq) rightarrow Cu2+(aq) + 2 H2O(ell) + 2 NO2(g) Copper gets oxidized (its oxidation number goes from 0 to +2) while the nitrogen gets reduced (from +5 in nitrate to +4 in nitrogen dioxide).
Agent Noun Synonyms: representative, intermediary, go-between, proxy, emissary, delegate, spokesman, spokeswoman, spokesperson, deputy, substitute, surrogate, advocate, emissary, legate, envoy, factor
Life Style / Travel / Pseudo-Agent: Someone claiming to be a travel agent who really isn't watch out for these types. They often produce bogus id cards, and can disappear when problems arise. Check credentials before doing business with MORE
Science / Chemistry / Reagent: A substance or mixture that is useful in chemical analysis or synthesis. MORE