Which thinker belongs at the beginning of raj's timeline? a.) aristotle b.) kepler c.) ptolemyd.) thales

How manyatoms of mercury are in 1.4214e+1 ml sample

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

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.