Please help :)
In the following reaction, which compounds are considered based?

HNO2 +H2O<-> H3O+NO2

A) H2O and NO2
B) HNO2 and H2O
C) H2O and H3O
D) H3) and NO2

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

Idon’t know how to solve this question

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?