You need to know the oxidation states and determine which ones change.
Al is zero on the left and +3 on the right; therefore, Al has lost electrons.
Ag is +1 on the left and zero on the right; therefore Ag has gained electrons. Al is oxidized; Ag is reduced.
Oxidising and reduction- Chemistry?
Oxidation and reduction can be described as the loss and/or gain of electrons from an ion or atom (species) in a chemical reaction. For the following aqueous reaction, select the species that is oxidized and similarly the one that is reduced:
Al(s) + 3Ag^+(aq) = 3Ag(s) + Al^3+(aq)
Which is the reactant species that is oxidising and which is the reactant species that is reducing?
2 answers
you mean Al^3+ is oxidized ,Ag^+ is reduced.
1 answer