Excerpt From Elementary ChemistryPreliminary Statement If We Observe Nature Closely, We Shall Soon See That Two Quite Different Classes Of Changes Are Constantly Taking Place First, There Are The Changes Which Do Not Affect The Essential Character Of Things Like The Motion Of A Body From One Spot To Another, And The Variations Between Heat And Cold, Sound And Silence, Light And Darkness, And So On Secondly, There Are The Changes Which Substances Undergo In Their Innermost Structure Like The Transformation Of Wood Into Charcoal, Of The Constituents Of Soil And Air Into The Stems And Leaves Of Plants, And A Multitude Of Other Simi Lar Alterations Of Different Degrees Of Complexity Changes Of The First Class Are Called Physical Changes, While The Others Are Known As Chemical And It Is With The Latter That The Science Of Chemistry Has To Do.About The PublisherForgotten Books Publishes Hundreds Of Thousands Of Rare And Classic Books Find At Www.forgottenbooks.comThis Book Is A Reproduction Of An Important Historical Work Forgotten Books Uses State Of The Art Technology To Digitally Reconstruct The Work, Preserving The Original Format Whilst Repairing Imperfections Present In The Aged Copy In Rare Cases, An Imperfection In The Original, Such As A Blemish Or Missing Page, May Be Replicated In Our Edition We Do, However, Repair The Vast Majority Of Imperfections Successfully Any Imperfections That Remain Are Intentionally Left To Preserve The State Of Such Historical Works.
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- 362 pages
- Elementary Chemistry
- F W Clarke
- 20 May 2019 F W Clarke