Hence it has been cut into 4pieces
Answer:
It is a single replacement reaction because copper replaces silver within a compound as copper is higher than silver in the activity series.
Explanation:
A single replacement reaction occurs between an element and a compound, therefore since copper is an element and sliver nitrate is compound, it is single replacement. This reaction occurs because copper is higher in the activity series then silver.
Chlorine, Uranium, Osmium, anything from Sulfur on really has 16 protons.
I'm not 100% sure on this one, but I think it's C.
Sorry, I'm not really good with Chemistry.
Hope this helps :)