Answer:
1. OXYGEN
2. H^2O
3. AORTA
D. UREA
E. ABG OXYGEN
2. Sodium Hypochlorite
Sodium Chloride
Sodium Bicarbonate
Ethanol
Sodium Fluoride
3. It is effective to kill bacteria and fungi. It is most used in hand sanitizer.
It often added to prevent cavities and to maintain tooth strength and health. It is also can be added in water for the same purpose, dental health.
Explanation: