Trial 1 Trial 2 Mass of empty crucible with lid 26.679 g 26.695

Mass of Mg metal, crucible, and lid 26.981 g 27.007

Mass of MgO, crucible, and lid 27.171 g 27.204

4. Magnesium is the limiting reactant in this experiment. Calculate the theoretical yield of MgO for each trial.

• Trial 1:

• Trial 2:

5. Determine the percent yield of MgO for your experiment for each trial.

• Trial 1:

• Trial 2:

6. Determine the average percent yield of MgO for the two trials.

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Newtons second law deals most cosely with

How many atoms are there in 5.70 mol of mg