Complete the statements about the redox reaction below. 2Cu2(a) Fe(s)- 2Cu (aq) + Fe2(aq) Half-reactions: Cu2+(aq) Cu (aq) E0.15 V Fe2 (aq) 2e Fe(s E0.44 V 3 4 is being oxidized. electrolytic Fe2 (aq) is being reduced. Cu(aq) Cu2+(aq) is acting as an reducing agent 6 is acting as an oxidizing agent voltaic moles of electrons are transferred. 2 Fe(s) The reaction is a(n) cell

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.

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas