Gold has a latent heat fusion of 64.5 j/g. how much energy is required to melt 20.0 g of gold?

1290 Joules

Explanation:

Latent heat of fusion is the amount of heat required to convert 1 mole of solid to liquid at atmospheric pressure.

Amount of heat required to fuse 1 gram of gold = 64.5 J

Mass of gold given = 20 gram

Heat required to fuse 1 g of gold = 64.5 J

Thus Heat required to fuse 20 g of gold =

Thus 1290 Joules energy is required to melt 20.0 g of gold

i would say b

explanation:

but i think i would need more information than that