What is the concentration of a solution prepared by dissolving 1.5mol of KOH in .50L of water

How have the greenhouse gasses increased from the year 2000 to 2018

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility

Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.