10. A liquid was had a density of 0.74 g/mL. If its volume was measured to be 30 mL, calculate the mass of the liquid in grams.

In 2002, the rare earth elements mine in mountain pass, california was closed because

Classify this reaction: 2al+n2-> aln.

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.