How many atoms are in 2.0 moles of C2H6

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

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

Which substance can be broken down by chemical means