4.2 grams of magnesium metal reacts with excess gold III chloride to form 5.9 grams of gold and also magnesium chloride. What is the percent yield of gold? Round your answer to two decimals

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

I'm not sure but i will try to find out