Elementary Chemistry |
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Page 58
127 178 That collocation of symbols which expresses the composition of a
compound is called the formula of that compound . The formulae Ball , B . 0 , Cr ,
Cl , HI , tell , that barium and oxygen combine to form barium oxide in the ratio
137 : 16 ...
127 178 That collocation of symbols which expresses the composition of a
compound is called the formula of that compound . The formulae Ball , B . 0 , Cr ,
Cl , HI , tell , that barium and oxygen combine to form barium oxide in the ratio
137 : 16 ...
Page 60
... based on one definite principle , whereby values may be obtained for what we
at present call the combining weights of the elements . . The symbol of an
element , then , expresses a definite mass of that element . The formula of a
compound ...
... based on one definite principle , whereby values may be obtained for what we
at present call the combining weights of the elements . . The symbol of an
element , then , expresses a definite mass of that element . The formula of a
compound ...
Page 61
A number placed beneath ( or sometimes above ) the symbol of an element in the
formula of a compound tells that the symbol is to be multiplied by this number . A
number placed at the beginning of the formula of a compound multiplies the ...
A number placed beneath ( or sometimes above ) the symbol of an element in the
formula of a compound tells that the symbol is to be multiplied by this number . A
number placed at the beginning of the formula of a compound multiplies the ...
Page 62
... and 2 c . ws . of hydrogen . The symbol Aq is used here , and generally in this
book , to mean a large ( indefinite ) quantity of water ; when placed after the
formula of a compound or element it means 62 ELEMENTARY CHEMISTRY . [
CHAP .
... and 2 c . ws . of hydrogen . The symbol Aq is used here , and generally in this
book , to mean a large ( indefinite ) quantity of water ; when placed after the
formula of a compound or element it means 62 ELEMENTARY CHEMISTRY . [
CHAP .
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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