Which of the following compounds contains a double bond?
a) nh3
b) co2
c) n2
d) cl2

Covalent bonds are formed between metals and boiling points true or false

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol