Use Hess's Law to calculate the energy change for the reaction that produces SO3. 2S(s) +20, (g) → 280, (g) 280, (g) +0, (g) → 280, (g)
AH = -594kJ AH =-198kJ

In a copper wire, a temperature increase is the result of which of the following

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

Iam 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?