Calculate the number of atoms in 18g of magnesium metal. [Mg=24, Auogadro no=6.023×10 squared 23]

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these