An iron ore contains 38% Fe2O3 by mass.
What is the maximum mass of iron that can be recovered from 15.0 kg of this ore?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Listenbase your answer to the question on the information below.nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body.cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment.which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61

The point along a planet's orbit where it is closest to the sun is called the