In the selection about oxidation, vinegar was used as part of an experiment to change the appearance of copper. In this selection, you learned that oxygen, food molecules, and enzymes are all part of
respiration. Which of these three chemicals plays the same role in oxidation as vinegar did in the
experiment? Explain your answer in detail.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.