A 2.865 g sample of Iron (III) Chloride hydrate FeCl3 xH2O was heated at 150°C until a constant mass was achieved (assume all waters have been removed). The mass after heating
was 1.719 g Determine the formula of the hydrate (20 pts)
PLEASE HELP ASAP

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

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

Salt in oceans comes from and of rocks