Which statement accurately describes a P wave?

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

The biosphere of the earth is made up of what compound? organic or inorganic?

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule