A. 18.45 mol ZnCl2 = g ZnCl2 B. 4.5 x 1027 atoms Ar = mole Ar

C. 17 g I2 = mole I2

a sequence is a function whose domain is the set of natural numbers.

natural numbers are all the negative and positive integers

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.