If two unidentified solids of the same texture and color have different solubilities in 100 grams of water at 20°c, you could conclude that a. they are the same substance. b. they are different substances. c. they have different melting points. d. their solubilities will be the same if the water temperature is increased.

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.