Question

Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A particular ore contains 68.5% galena by mass. If the lead can be extracted with 92.5 % efficiency, what mass of ore is required to make a lead sphere with a

6.50cm radius?

Answer 1

ds hj bfsj gjhbyuabfdbsybfy

Explanation:

sdbhabjbgfybsbfsad gfhysabfubdfr