Moles gizmo answers full

Based on its chemical properties, identify the position of each chemical family on the periodic table.

What human activity increases beach erosion?

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.