What type of model uses number to describe something A. A mathematical model
B. A physical model
C. A size model
D. A conceptual model​

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.

What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon