please help i have triend but still says its wrong:(

If you are unsure how to complele a step of the question, assistance is avalable in Hints named by the step. Scroll down to open a Hint. If every step in the experimental procedure is done correclly, all of the magnesium (Mg) will be converted into magnesium oxide (MgO). 1a. Assuming the experiment was execuled without error, 1b. Use the starting amount of Mg,0.390g, and the result from determine the mass of MgO produced from 0.390g of Mg by the part ( 1 a) to determine the mass percent of Mg in MgO. Enter reaction: 2Mg(s)+O2(g)2MgO(s) using that 1.6583g of MgO is formed from 1.0000gMg. Enter the result in g to the the result in percent to the nearest 0.01%. Do not enter the % hearest 0.001g. Do not enter the unit. In the experiment, water is added to corvert the small amount of magnesium nitride (Mg3N2) that might have been produced during magnestum combustion into magnesium oxide (MgO). Part 2 will explore the consequences of skipping this step. Consider the same 0.390g of magnesium (Mg) being heated in a crucible under combustion condtions where 90.39% of the magnesium is converted inte magnosium oxide (MgO) and 9.61% of the magnosium is converted into magnesium nitride (Mg2N2). Answer the following questions assuming the procedural error of not adding water to convert magnesium nitride to mignesium oxide. 2a. Determine the mass of MgO produced by the reaction: 2 2b. Determine the mass of Mga N2 produced by the reaction:3 Mg(s)+O2(g)2MgO9(s) using that 1.6583g of MgO is formed Mg(s)+N2(g)M3N2(s) using that 1.3842.9 of Mg3N2 is from 1.0000gMg. Remember that only 90.39% of the Mg formed from 1.0000gMg. Remember that only 9.61% of the produces MgO. Enter the result in g to the nearest 0.001g. Do not enter the unit. Ma produces Mg2N2. Enter the result in g to the nearest 0.001 9. Do not enter the unit. 2e. If the procedural mistake was not recognized and the experimental resuls were analyzed as it the mass of all solid products MgO(g) and Ma9N2(s) ) was pure MgO, what mass percent of Mg in MgO would be detornined? Enter the resuit to the nearest 0.01%. Do not enter the % symbol. 2. Select the words which correctly summarizes the result of the procodural ocroc. HINT Compare the answers to part 1 and part 2 . The dotermine mass percent of Ma in MqO is in MoO