When water vapor is is cool it is reforming some water droplets why does this presents a conversation in mass

What three things determine the shape and size of a puddle when water is poured out onto a surface

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

What atom has the largest atomic radius