How many grams of ammonium sulfate are needed to make a 0.25 M solution at a concentration of 6 M?

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Why did southern business leaders want to increase the number of slaves

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