Which of the following is NOT a valid conversion factor? A. 12 hours/1 days
B. 1 yard/3 feet
C. 1 dozen/12 cookies
D. 60 seconds/1 minute

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)