A solid mass of 25 grams is mixed with 60 grams of a solution. A chemical reaction takes place and a gas is produced. The final mass of the mixture is 75 grams. What is the mass of the gas released?

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

Adilute aqueous potassium nitrate solution is

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