Identify: explain why the moon can be seen from the earth

Which answer lists the fundamental forces in order from strongest to weakest

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

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