Balanced equations are used to allow chemists to calculate how much product they will produce from their reactants. The co-efficients in balanced equations represent the number of moles reacting ...

Solutions are formed when solutes dissolve in solvents. If the number of moles of solute and the volume of solvent used is known, the concentration of the solution can be calculated.

Moles on arms can be a sign of high skin cancer risk THE number of moles on your right arm is an indicator of how likely you are to get skin cancer, a new study suggests.