1-Is this an image of a chemical change?

Question

2-What happens to molecules in each object as they change?

person is holding a piece of gallium metal as it melts from a solid into liquid metal

Answer 1

1- It is not specified whether there is an image provided, so it is difficult to answer this question without visual reference.

2- In the scenario described, as gallium metal melts from a solid into liquid metal, the molecules in the object gain enough energy to overcome their attractive forces and transition from a rigid, organized arrangement in the solid state to a more chaotic and fluid arrangement in the liquid state. The individual gallium atoms remain the same, but their arrangement and movement change during the phase transition.