Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 27
inal mol-ecules are broken up and newones take their place. Thus the passage of waterthrough its three states is apurely physical change, whilethe decomposition of water intohydrogen and oxygen is a chem-ical change. The first is illus-trated by the melting of iceand evaporation of the result-ing… … mm>^ Fig. 2.—Hoffman apparatudecomposing water. for THE CONSTITUTION OF MATTER H 20. Protyle.—The atom which we have described aboveis the chemical atom, and by definition is indestructible.It is more reasonable to believe, however, that as we haveonly one power in the universe manifested in the…
Physics
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