Object a has 604 j of kinetic energy and 285 j of gravitational potential energy. object b has 481 j of kinetic energy and 300 j of gravitational potential energy. which object has more mechanical energy? object a has more mechanical energy. object b has more mechanical energy. they have the same amount of mechanical energy. there is not enough information to know.

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.

Condensation happens when water vapor cools. true or false? ?