How much heat is released (in calories) by a sample of pizza burned in a calorimeter if the temperature of the 50 grams of water in the calorimeter was raised from 23.5°C to 94.2°C? Convert your final answer to Joules.

Which statement is best described as a atom

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.