Which of the following describes the relationship correctly? a. air expands, becomes less dense, and rises. b. air expands, becomes denser, and sinks. c. air contracts, becomes denser, and rises. d. air contracts, becomes less dense, and sinks.

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

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.

What is the mass of 0.46 mil of mgcl2