Look at the table and answer:

About how many times silver nitrate is a more soluble substance than potassium sulphate, at ${25}^{°}\mathrm{C}$?

Look at the table and answer:

Silver nitrate gives a colourless solution. What will you see if you add $300$g of it to $100$g of water at ${25}^{°}\mathrm{C}$?

Look at the table and answer:

What will you see if you heat up the saturated solution of silver nitrate? 

Look at the table and answer:

Name two metals that have no insoluble salts.