If you are in Greenland the water would be ? A . Cole ,salty and moving fast

B. Cold , salty and moving
slow

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

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