When 52.4 g of a compound was burned in a bomb calorimeter that contained 0.256 kg of water the temperature rise of the water in the calorimeter was 50.0C. If the heat of combustion of the compound is 1,651 kJ/mol, what is the molar mass of the compound? Specific heat of water is 4.184 J/g. Answer to 0 decimal places and
enter the units

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

d.) circle motion requires a force to give it a centripetal acceleration.