A friend of yours went panning for gold last weekend and found a nugget that appears to be gold. With your newfound scientific prowess, you set out to determine if it is really gold. Your tests show that the nugget has a mass of 7.6 g. Immersing the nugget in water raised the volume from 7.22 mL to 8.06 mL. The density of gold is 19.32 g/cm3. What will you tell your friend

both density is different so we can say nugget is not made by gold

Explanation:

given data

mass m = 7.6 g

volume  v = 7.22 mL to 8.06 mL

density of gold = 19.32 g/cm³

solution

we know that if there is when there is density of gold = density of nugget than we can say it is gold

so here

d =     ........1

here v = (8.06 - 7.22) = 0.84 mL

put here value in eq 1

d =

d = 9.047 g/ml

so here density is different so we can say it is not by gold

a. hope i'm right

explanation:

14 days is the half-life of phosphorus-32