Topic-3 Redox reactions Flashcards
1
Q
which ever is more reactive…
A
can displace
2
Q
removal of hydrogen is called…
A
oxidation
3
Q
addition of hydrogen is called…
A
reduction
4
Q
dtermine oxidation and reduction of:
ZnO + Mg —> Zn + MgO
and write half-equations
A
Zn2+ —> Zn
gain of electrons (reduction)
Mg —> Mg2+
loss of electrons
(oxidation)
Half equation
Mg —> Mg2+ + 2e- oxidation
Zn2+ + 2e- —> Zn reduction
5
Q
oxidising agent…
A
chemical accepting electrons eg Zn 2+ is accepting electrons from the magnesium atom.
6
Q
reducing agent
A
chemical donating electrons eg magnesium atom
7
Q
oxidising agent is always…
A
reduced
8
Q
the reducing agent is…
A
always oxidised
9
Q
A
