Eliza places an 18-gram piece of an unknown substance into a graduated cylinder that is filled with 5 mL of water, and the water rises from the 5 mL line to the 8 mL. What is the density of the unknown substance in g/mL?

6g/mL

Explanation:

Given parameters;

Mass of the unknown substance  = 18g

Volume of water before the mass is introduced  = 5mL

Volume of water after the mass is introduced  = 8mL

Unknown:

Density of the mass = ?

Solution:

Density is the mass per unit volume of a substance.

             Density  =

Mass is the amount of matter in a substance

Volume is the space occupied by a body

Volume of the body  = 8mL - 5mL = 3mL

Insert the parameters and solve;

             Density  =   = 6g/mL

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.