Which of the following best describes hail?

a- small ice pellets that may fall to the ground in a mixture of rain and snow in the form of a solid

b- a form of precipitation that occurs when liquid and frozen precipitation freezes in layers creating chunks

c- water droplets that collide with others to form large drops as they leave the clouds and fall toward the ground

d- solid precipitation that is formed in clouds as ice crystals that stick together in groups to form flakes and leave the clouds as flakes

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.