Ao
25% of 80 =
me asap
this is math btw not chem

Calculate the number of moles of ethane in 100 grams

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.