How many moles are there in one ounce(28.4g) of pure gold?
a.1.97 x 10-2mol
b.6.94mol
c.0.144mol
d.0.0721mol
e.5.08 x 10-3 mol?

I am pretty sure that it is C but to be sure, you should look up an explination

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling