Earth’s water is mostly a) Saline

b) freshwater

c) fresh ground water

d) fresh surface water.

Which of these conditions most likely produces an unstable isotope?

Connect the whole numbers on the periodic table to indicate what they represent?

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