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Does urine evaporate on different kinds of surfaces? Where did bacteria or archaea get its DNA? Finding the derivative problem I posted a picture please help? If the slope is 255.96 what is the calculated population for the year 2020 using the current rate of increase? How many moles and how many grams of potassium alum, KAI(SO4)2 •12H2O can be prepared from 5.00 g of aluminum?