What describes a property of all elements

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

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?

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg