A long thin sample of a substance is easily bent. When the substance is placed in a n electric circuit and the switch is closed, and LED light turns on. What type of bonding holds the particles of the substance together?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.