All substances have characteristic properties. if one of these properties can be observed without changing the identity of the substance, it must be a chemical property. biological property. universal property. physical property.

Compare and contrast refraction of light and sound will give brainliest

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro

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