How many moles are in 22 grams of lithium

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.

The movement of tectonic plates and in two locations is described below: location a: tectonic played push together location b: tectonic plates push apart