2.3 redox reactions
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8 Terms
oxidation numbers in compounds
oxygen: -2 (-1 in peroxides and +2 in F2O
hydrogen:+1 (-1 in metal hydrides)
fluorine (-1)
group1 metal:+1
group 2 metal:+2
what determines the oxidation number?
the more electronegative element
what is a redox reaction
reaction where both oxidation and reduction occur
what is oxidation?
increase in oxidation number and loss of electrons
what is reduction?
decrease in oxidation number (gain of electrons)
what is neutralisation?
reaction between the H+ ions from the acid and OH- ions from the base to form water and remaining spectator ions form a salt
acid reaction with metal
unreactive metals do not react with dilute acids
extent to which metal dissolves and rate at which H2 is produced depends on the strength of the acid and the reactivity of the metal
what is a titration?
