Calculate the amount of heat needed to melt 168. g of solid hexane c6h14 and bring it to a temperature of -16.9 C

What must happen before a body cell can begin mitotic cell division

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?