The following characteristics describe which type of mixture, homogeneous or heterogeneous? the substance is mixed uniformly throughout and each part of the substance contains the same ratio of materials with the same properties. a. homogeneous mixture. b. heterogeneous mixture.

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 is the binding energy of a nucleus that has a mass defect of 5.81*10-^29 kg a 5.23*10-^12 j b 3.15* 10^12 j c 1.57*10-3 j d 9.44*10^20 j

Calculate the concentration of all species in a 0.165 m solution of h2co3.