Acone with a mass of 6 g has a radius measuring 5 cm and a height of 2 cm, making the volume 52.33g/cm3 (3.14*52(2/ what is its density? a- 60 g/cm3 b- 52.33 g/cm3 c- 0.11 g/cm3

The volume of a cone is equal to (pi*r^2*h)/3

(pi*25*2)/3= 52.35987...

Density = mass/volume

d= 6 grams/ 52.35987 cm^3= 0.11459...

Final D

answer; ///i do believe that the correct answer is ; ///(physical change);

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.