How are chunks of time in the geologic timeline organized ?
a.) each chunk of time represents the same numbers of years.
b.) each chunk of time represents a time when fossil indicate that earth's life forms were similar.
c.) the chunk of time are organized by the year when major fossils were discovered.
d.) the chunk are organized by the number of years since the extinction of the dinosaurs.

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.

The msds for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact with. it reacts with bases, various metals, and strong oxidizing agents. its vapors can form explosive mixtures with air.

Areaction in which products can react to re-form reactants is