A 5,000kg sample of an impure mineral that contains 45.3% iron pyrite reacts with oxygen. Assume the reaction has a yield of 78.0% because it is incomplete. How many grams of iron (III) oxide are produced?

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

The answer for this is a

Ithink the answer is d