After you exercise for a while, you may notice that your skin turns red? how is the blood flow in your limb changes as a response to the exercise? when your skin turns red, how is the temperature changed at the skin surface (tskin)? if the total heat loss from the skin surface to the environment is ha(tskin-tar), during exercise, is the total heat loss to the air increased or decreased? is it reasonable? here h is convection coefficient at the skin surface. a is the skin surface area. tair is the air temperature. neglect sweating (hint: during exercise, the total heat generated per unit time by the body increases significantly. if all the generated heat has to escape from the skin surface, then heat loss from the skin surface to the environment also increases during exercise.

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

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.

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6