Who has a sister named Mona?

the narrator in “The White Umbrella”
Martin
Marie
Cheryl

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.

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions