The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen.
Answer:
carbon dioxide CO2 carbon (C) and oxygen (O)
sodium chloride NaCl sodium (Na) and chlorine (Cl)
sodium hydroxide NaOH sodium (Na), oxygen (O) and hydrogen (H)
calcium chloride CaCl2 calcium (Ca) and chlorine (Cl)
Explanation:
