Elementary Chemistry |
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Page 10
The alchemists not only thought that they could , but asserted that they did ,
change water into earth or into fire , lead into silver , and copper into iron . Their
conception of nature led them to regard all things as undergoing continual
change ...
The alchemists not only thought that they could , but asserted that they did ,
change water into earth or into fire , lead into silver , and copper into iron . Their
conception of nature led them to regard all things as undergoing continual
change ...
Page 23
The following well - known substances are elements : - iron , lead , tin , silver ,
gold , copper . These are all heavy , lustrous , malleable , solids . A few elements
are gases at ordinary temperatures and pressures , viz . oxygen , hydrogen ...
The following well - known substances are elements : - iron , lead , tin , silver ,
gold , copper . These are all heavy , lustrous , malleable , solids . A few elements
are gases at ordinary temperatures and pressures , viz . oxygen , hydrogen ...
Page 44
When an aqueous solution of this compound is mixed with a solution of silver in
nitric acid , the ammonium chloride is decomposed and the whole of the chlorine
formerly combined with nitrogen and hydrogen enters into combination with the ...
When an aqueous solution of this compound is mixed with a solution of silver in
nitric acid , the ammonium chloride is decomposed and the whole of the chlorine
formerly combined with nitrogen and hydrogen enters into combination with the ...
Page 45
In each experiment Stas added 100 parts by weight of pure silver , prepared with
the greatest care and weighed with the greatest accuracy , to a solution of
ammonium chloride prepared by one or other of four distinct methods ; he
collected ...
In each experiment Stas added 100 parts by weight of pure silver , prepared with
the greatest care and weighed with the greatest accuracy , to a solution of
ammonium chloride prepared by one or other of four distinct methods ; he
collected ...
Page 57
2 Silver Didymium Di 144 Sodium 23 Erbium 166 Strontium Fluorine 19 Sulphur
32 Gallium 69 . 9 Tantalum 182 Germanium 72 . 2 Tellurium Te 125 Gold 197
Terbium 148 Hydrogen H 1 Thallium 204 Indium 113 . 4 Thorium 232 Iodine :
127 ...
2 Silver Didymium Di 144 Sodium 23 Erbium 166 Strontium Fluorine 19 Sulphur
32 Gallium 69 . 9 Tantalum 182 Germanium 72 . 2 Tellurium Te 125 Gold 197
Terbium 148 Hydrogen H 1 Thallium 204 Indium 113 . 4 Thorium 232 Iodine :
127 ...
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acid action added alkali aqueous solution atomic weight basic bismuth bodies bromine called carbon chemical change chlorine combining weight composed composition compounds contain copper decomposed definite Demy determined dioxide directly dissolves easily Edited elements energy equal erbium exist experiment expressed formula gaseous molecules gases given grams haloid heat hydrated hydrides hydrogen hydroxides interact iodine iron kinds of matter known lead less liquid magnesium marked mass meaning mercury metals method mixture molecular weight molecule negative nitric nitrogen Notes obtained occur oxide oxidised oxygen passed phosphorus physical placed positive potash potassium prepared present probably produced properties quantity ratio reacting weight reactions regarding relations relative remains represented salts separated shew silver similar sodium solid solution specific substances sulphide sulphur sulphuric acid temperature term theory values vols volume whole