What is the molality of a solution That contains 63.0 g HNO3 In 0.500 kg H2O

Why is permeable soil best for plants that need a lot of drainage?

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

This statement about matter and its behavior is best classified as a