Show work, im really confused so

in an experiment to find out if a person consumed toxic methyl alcohol, the following data were collected:
mass of empty beaker = 157.1 g
mass of beaker = 50 ml unknown sample = 197.4 g
did this person consume methyl alcohol? ?

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.