I accidentally uploaded a question multiple times, anyone know how to delete them? Thanks.

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.