1.consider the following metal Na, Fe, k, and Cu.
ai. arrange the metal in order of increasing reactivity.
Ii. which of the metal reacts with cold water.
iii. which of the metal could form coloured salts.
bi. what is redox reaction.
Ii. identify with the following reaction equation are redox.
I. 2Na +Cl2-2NaCl.
Ii. AgCl +2NH3-(Ag(NH3)2)Cl.
iii. C2H2+H2-C2H4.
iv. HCL+KOH -KCL+H2O.
v.2feCl3+2kl-2feCl2+2kCl+I2