(02.02 mc)
a plant grows three inches in a month. why is this a physical change?

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.

What are the similarities of physical and chemical change ?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?