Which segment of this graph shows a decreasing velocity?

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures