Stalactites and stalagmites are mineral formations in caves. Stalactites hang from the ceiling of a cave, while stalagmites grow from the cave floor. What is the chemical composition of stalactites and stalagmites? Select the correct answer below: A. calcium carbonate
B. calcium oxide
C. sodium bicarbonate
D. sodium carbonate

The length of a vector arrow represents its magnitude and the point represents its direction true or false apex

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

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.