Which of the following is a balanced chemical equation? h2o2 --> h2o + o2 2 fe2o3 + 3 c --> 4fe + 3co2 so2 + o2 + 2h2o --> 4h2so4 2 mg + hcl --> mgcl2 + h2

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

How to calculate the mass of copper

What kind of intermolecular forces act between a hydrogen fluoride molecule and a hydrogen peroxide molecule? note: if there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.