When a solid melts, what happens to the speed and arrangment of the molecules? The particles speed up and spread out.
The particles slow down and spread out.
The particles speed up and are close together.
The particles slow down and are close together.

This drawing shows a human body system. what is the primary function of this body system?

What is i fracture in the crust called when land move up, down or sideways

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.