Elementary Chemistry |
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Page 71
... positive electrode , and a little alkali at the negative electrode . He re - distilled the water and again electrolysed it , but the result was the same . He noticed that the glass 90-93 ] 71 CHEMICAL STUDY OF WATER AND AIR .
... positive electrode , and a little alkali at the negative electrode . He re - distilled the water and again electrolysed it , but the result was the same . He noticed that the glass 90-93 ] 71 CHEMICAL STUDY OF WATER AND AIR .
Page 72
... positive electrode . The acid he found to be nitric acid . He knew that this acid is a compound of three elements ; hydrogen , oxygen , and nitrogen . Hydrogen and oxygen Davy could confidently affirm to be constituents of water ; he ...
... positive electrode . The acid he found to be nitric acid . He knew that this acid is a compound of three elements ; hydrogen , oxygen , and nitrogen . Hydrogen and oxygen Davy could confidently affirm to be constituents of water ; he ...
Page 73
... positive electrode . But he had already proved that the production of acid was not connected with the presence of ... positive , electrode . This led Davy to regard many compounds as built up of two parts , one positively , the other ...
... positive electrode . But he had already proved that the production of acid was not connected with the presence of ... positive , electrode . This led Davy to regard many compounds as built up of two parts , one positively , the other ...
Page 99
... positive electrode ( wire coming from copper plate ) , respectively . As ' electricities of opposite sign attract each other , ' hydrogen is called an electro - positive element , and oxygen an electro - negative element . If hydrogen ...
... positive electrode ( wire coming from copper plate ) , respectively . As ' electricities of opposite sign attract each other , ' hydrogen is called an electro - positive element , and oxygen an electro - negative element . If hydrogen ...
Page 100
... positive and electro - negative are therefore purely relative terms ; an element A may be positive towards an element B , but it may be negative towards another element C. The following list indicates the arrangement of the com- moner ...
... positive and electro - negative are therefore purely relative terms ; an element A may be positive towards an element B , but it may be negative towards another element C. The following list indicates the arrangement of the com- moner ...
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Common terms and phrases
acids to form affinity alcohol alkali allotropy ammonia ammonium ammonium chloride antimony aqueous solution atom of carbon atom of hydrogen atom of oxygen atomic theory atomic weight basic oxides bismuth bromine Chap chemical change chemical properties chlorine chromium combining weight composed composition copper decomposed definite directly interacting elements and compounds energy form salts gaseous molecules gases gasified grams H₂O H₂SO haloid compounds heat hydrides hydrochloric acid hydrogen and oxygen hydrogen chloride hydroxide interact with acids iodine iron kinds of matter liquid M₂O magnesium mass mercury metals mixture molecular and atomic molecular weight nitric acid nitrogen non-metallic obtained occur oxidised oxygen phosphorus physical potash potassium chloride produced quantity ratio reacting weight reactions represented rubidium selenion shew shewn sodium solid specific gravity structural formulae substances sulphate sulphide sulphuric acid tellurium temperature tube valency vols weight of hydrogen weight of oxygen zinc