Is there a new powerful weapons that stronger than nuclear weapons. if yes, explain why and how.

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

37.0 °c = °f (human body normal temperature)