When 3.18 g of sucrose (C12H22O11) is burned in a bomb calorimeter, the temperature increases from 23.7°C to 39.8°C. The calorimeter contains 775 g of water and the calorimeter has a heat capacity of 865 J/°C. How much heat was produced by the combustion of the sucrose sample?

When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? c7h16o(g) + o2(g) → co2(g) + h2o(g) -1 -5 -8 -16 -21

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?