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The authors entertain views rather different from those which generally prevail
regarding the relative importance of the various parts of chemistry ; they have
endeavoured to make the teaching given in this book sound so far as it goes ;
Before , during , and after , the passage of the electric current , the soft - iron
exhibits all those properties — colour , relative density , tenacity , malleability ,
texture , & c . — which mark it off from other kinds of matter ; while the current is
6 One kind of matter is recognised , and distinguished from other kinds of matter ,
by its colour , texture , brittleness , opacity , relative density , hardness , & c . ; also
by its behaviour when heated , when submitted to the action of electricity ...
But in all practical problems with which we shall have to deal , the terms mass
and weight may be taken as synonymous ; because the relative masses of
substances are determined in chemistry by weighing them. * If the student is not
The object of the inquiry is to find the relative weight of the smallest mass of the
compound which interacts with other compounds , or with elements , in chemical
changes . The composition of this mass is then expressed in the formula of the ...
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