• chemistry students and chemists celebrate Mole Day in honor of Avogadro’s number, the number of carbon atoms in 12grams of carbon.
• There is about 1/2lb or 250g of table salt (NaCl) in the body of an average adult human.
• Lightning strikes produce ozone (O3) and help strengthen the ozone layer.
• Humans have been using chemistry since at least Ancient Egypt. By 1000 bce human civilizations were using advanced forms of chemistry like extracting metals from ore, fermenting alcohol, and refining plant extracts as medicine.
• DNA is flame retardant.