How many atoms are there in 200. Grams of carbon? How many grams are there in 1.0 x 10^24 atoms of boron?
How many grams are there in 4.5 x 10^22 atoms of silver?
How many atoms are there in 9.34 grams of lithium
How many grams do 4.3 x 10^21 atoms of zinc weigh?

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

b. examine and describe cells

c, liquids evaporate, creating a gas