A large rock is motionless on a flat sidewalk. Which statement best explains why the rock remains motionless? A. There are no forces acting on the rock

B. The only force acting on the rock is directed towards the sidewalk

C. The forces on the rock are all balanced.

D. The sidewalk exerts an unbalance force on the rock

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.