How many grams of al2o3 are produced from 4.2 grams of of al reacting with o2?

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

Wind and moving water provide energy. chemical mechanical thermal none of the above