Usage History of 'reactivities'

The following chart shows how frequently 'reactivities' appeared in printed materials over time. For example, the word 'reactivities' occurred 6 times in books in 1860 and 1,921 times in 2008. From 1860 to 2008, the word 'reactivities' was used a total of 114,896 times in books scanned by Google. See Reference: Google Ngram project.

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