What is the chemical formula of water?
Answer and explanation
Correct answer: C. H2O
- Step 1: Each water molecule has two hydrogen atoms and one oxygen atom. Answer: H2O. Why not the others: CO2 is carbon dioxide, NaCl is table salt and O2 is oxygen gas.
Practise more Chemistry.
Free questions with an explanation for every one, and full timed TMS (Test fĂŒr Medizinische StudiengĂ€nge) practice mock tests.