I NEED HELP AND FAST WHOEVER IS CORRECT GETS BRAINIEST JUST PLEASE HELP Read each statement, and write in the blank the word or words that best completes the statement.
13. A molecule is the smallest unit of a substance that retains the of that substance.

14. The chemical symbol O stands for the element .

15. The chemical formula for a chlorine molecule, which contains two chlorine (Cl) atoms, is .

Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

What is a property of a double replacement reaction