Compared to an atom of c-12, an atom of c-14 has a greater

number of electrons

number of protons

atomic number

mass number

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

What was bohr’s contribution to the planetary model

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