Chemistry / The Scientific Method
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Solution: Classify each statement as an observation, a law, or a theor...

Question

Classify each statement as an observation, a law, or a theory.

a. Chlorine is a highly reactive gas. 

b. If elements are listed in order of increasing mass of their atoms, their chemical reactivity follows a repeating pattern. 

c. Neon is an inert (or nonreactive) gas. 

d. The reactivity of elements depends on the arrangement of their electrons.