How will you relate the levels of biological organizations to your shool's organizations?

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.

What element has similar physical and chemical properties as boron.

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2