Based on the particle level representation, which of the following could be the correct redox reaction?

In which phase(s) do the molecules take the shape of the container?

What happens when the temperature of a solution increases?

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.