13. redox reactions Flashcards
1
Q
a loss of electrons is called
A
oxidation
2
Q
a gain of electrons is called
A
reduction
3
Q
if electrons are transferred its a ____ reaction
A
redox
reduction and oxidation happen simultaneously.
4
Q
an oxidising agent
A
accepts electrons and gets reduced
5
Q
a reducing agent
A
donates electrons and gets oxidised
6
Q
when metals form compound they usually have
A
positive oxidation numbers
generally donate electrons to form positive ions
7
Q
when non metals form compounds they usually have
A
negative oxidation numbers
generally gain electrons
8
Q
when metals react with acids they are
A
oxidised
(loose electrons to form positive metal ion in salts)
(hydrogen ions in solution are reduced gain electrons and form H2 molecules)
