Heterogenous matter

If the flour or fecula he gray—that is, if it has been badly prepared, and adulterated or damaged—the patontee substitutes half a pint of sulphuria for the hydrochloric acid, by the agency of which, he states, the heterogeneous matters are separated from the good flour. 

DEPOSIT - A term of chemistry which refers to a Liquid in which Heterogeneous Matter is infused-which matter is separated and precipitated to the bottom of the vessel in which the liquor is contained. The matter precipitated is termed a Sediment. 

PROJECTION — It is to be noticed that in the operation of Projection, all the Metal upon which the Powder is projected does not transform into Gold or Silver unless it has been well purified before fusion. There is an exception in the case of Mercury because it has naturally a smaller proportion of impure and heterogeneous matters, and possesses also much closer analogy with gold. To make projection upon Mercury, it is sufficient to warm it slightly, and the powder must be projected before it begins to give off smoke. The powder is wrapped in a little wax, and the pellet thus formed is cast upon the metal in fusion. The crucible is covered over, and the powder is left to act for the space of a quarter of an hour or thereabouts. The Matter is then allowed to get cold, and is then taken out of the vessel. If cracked or broken, it must be projected upon a small quantity of the same metal in fusion, for it is a proof that too much powder has been used. 

What is the difference between homogeneous and heterogeneous matter Ciassify each of the foiiowing as homogeneous or heterogeneous. 

The discussion in rheological terms of the problems associated with rubber processing is relatively recent and results from theoretical and experimental progress in understanding flow properties of pure polymers, and particularly thermoplastics. However the rheology of elastomers is further complicated by the necessary presence of fillers, plasticizers and other ingredients. These lead to peculiar flow properties associated with heterogeneous matter and therefore not yet well understood. 

Homogeneous mixtures such as sugar water are called solutions (see > Figure 1.6). Mixtures in which the properties and appearance are not uniform throughout the sample are examples of heterogeneous matter. The mixture of rock salt and sand that is spread on snowy roads during the winter is an example. 

Factors used in the factor-unit method (1.9) Heteroatomic molecules (1.3) Heterogeneous matter (1.4)... 

COAL 7 Distinguish between homogeneous and heterogeneous matter. 

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