Polyvinylchloride (called PVC), which is widely used for floor coverings (“viny”) and for plastic pipes in plumbing systems, is made from a molecule with the formula . Calculate the molar mass
of this substance if the formula is CzH;CI.

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

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.