True or false(Internal forces act on the outside of an object, and external forces act within an object.)

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

How many atoms are there in 5.70 mol of mg

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.