A bird is able to easily soar when it flies over a thermal. A thermal is a current of warm air that is heated by the ground and rises up into the sky, taking the bird with it. What is this an example of?
A. Conduction
B. Radiation
C. Contusion
D. Convection

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.