What is the definition of hydro energy

219 grams of iron (iii) oxide reacts with excess carbon according to the reaction equation shown below. fe2o3 + c → fe + co2 after a scientist performs the chemical reaction they find the actual yield of iron to be 57.4 grams. calculate the percent yield of this chemical reaction.

The boiling point of liquids is very high what does it indicate

How do scientists think that gravity affected the formation of our solar system?