A student was asked to formulate a hypothesis about what would happen if 100 mL of 0.1 MNaOH(aq) at 25°C was combined with 100 mL of 0.1 MMgCl2 (aq) at 25°C. Which of
the following hypotheses indicates that the student thought a chemical change would
occur?

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

Answer explain why it is not possible to deduce a complete order of reactivity.

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