A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 243
water. The gas produced is hydrogen,and the decomposition is shown as follows: HO+E=zEO+JI;that is, water acted upon by metallic potassium yieldsoxide of potassium and hydrogen gas. A more economical process is usually resorted to, de-pending on the fact that metallic zinc can decompose How may… … 230 PREPARATION OF HYDROGEN. water at ordinary temperatures. As the oxide of zincproduced is insoluble in water and would soon cause theaction to cease, it is necessary to add an acid, as, for ex-ample, sulphuric acid, to unite with the oxide and forma soluble salt. The surface of the zinc is then…
Chemistry · Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from One thousand processes in manufactures and experiments in chemistry / [Colin Mackenzie]. (1825)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b29307867-336-1.webp)
![An illustration from Examen dv livre des Recreations mathematiqves, & de ses problemes en geometrie mechanique, optique & catoptrique [du J. Leurechon] Où sont aussi discutées & restabiles plusieurs experiences physiques y proposées (1639)](https://img.insideoutlibrary.com/img/200/ia-examendvlivredes00mydo-136-27.webp)
![An illustration from One thousand processes in manufactures and experiments in chemistry / [Colin Mackenzie]. (1825)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b29307867-523-1.webp)