The prepared petri dishes that Kathy used contain sugar. Why do you think petri dishes contain sugar?

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

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?

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa