Complete the following word equation and write the balanced formula equations:

a. Zinc(s) + iodine(g)
b. Hydrogen peroxide(l)
c. Magnesium(s) + lead(IV) nitrate(aq)

Zn + I2 ==> ZnI2

What is your problem with this? They look straight forward. For the last one you need to know the activations series.
It's a single replacement reaction.