Discover Questions

I have 36 purple stones. Under florescent lights stones turned violet/bluish on a 1921 Liberty $20 gold piece, what r they? I want to login again? What is the product of 2 x the sum of 36,46,52,43, and 48? What is the final temp (in oC) when 20.0 g of water at 25°C is mixed with 30.0 g of water at 80.°C? Specific heat of water is 4.184 J/goC.? List of temperature in Memphis, Tennessee summer 1980?