negative delta H ( Δ H) – rxn releases heat
(7) reducing agent – gives electrons to an oxidizing agt – elemental metals are good reducing agts
(8) anode – electrode at which oxidation occurs ( electron loss) like Zn in a Zn/Zn+2// Cu+2/ Cu voltaic cell
(9) diatomic elements – exist in pairs – hydrogen, nitrogen, oxygen and the halogens – fluorine, chorine, bromine and iodine
(10) kinetic energy – the energy of motion – KE = ½ mass x velocity ²
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