Which describes a characteristic of branched polymers?
they have only one start point and many end points.
thave many start points as well as many end points.
they have many start points and only one end point

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.