Write the formula for calcium chloride

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.