15 points!

I have a lab to complete and I'd like help on some yields!

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

• Trial 1:

• Trial 2:

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

• Trial 1:

• Trial 2:

Attached image: data

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Compare and contrast physical changes with chemical changes.

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring