What occurs to the kinetic energy when the mass moving object is doubled?

What does x represent in the formula for the compound xcl4?

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

In 2002, the rare earth elements mine in mountain pass, california was closed because