Given six molecules, identify the molecules with polar bonds and the molecules that are polar. CCl4, CH3Cl, H20, CO2, O2

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

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.