4fe+3o2--> 2fe2o3. how many moles of fe2o3 are produced from 0.5 moles of o2? a. 0.33 mol b. 0.75 mol c. 0.38 mol d. 0.67 mol

200. ml of 3.00 m nacl solution is diluted to a final volume of 500. ml. what is the molarity of the final solution?

What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml

Areaction in which products can react to re-form reactants is