3 Part One. The Predicate

Lesson 30
GRAMATIKA: Cheksizlik va cheksiz aylanish, vaziyatning funktsiyasi sifatida. Nisbiy ravishdosh gaplar.

Section I
Ex. 1. Practise your reading.

It is a matter of common experience that the capacity o f a solvent to dissolve in a given solute is often limited.

Ex. 2. State what parts of speech the following words belong to: mix, mixture, mixing, mixer, mixed, mixablc, misciblc, miscibility
Ex. 3. Define the meanings of the word casein the following sentences:

1. We shall first limit ourselves to the caseof ideal solutions. 2. In case a solute and its solution rcach equilibrium, a saturated solution may result. 3. A homogeneous material has the same properties throughout, it is far from the case with heterogeneous materials.4. According to their properties the galogens should be very reactive, and this is really the case.5. Reacting with oxygen, an element forms an oxide in which casethe process is known as oxidation. 6. Phosphorus is very active chemically, but this is not the casewith nitrogen. 7. During oxidation, heat and light are often liberated, in this casethe process is called combustion. 8. It was supposed that oxidation o f copper could be prevented under low temperatures, and such was the case.9. One cannot expect that gas molecules would always behave in the same way as is the casewith liquid molecules. 10. If there are several ways of doing something, one should know all of them so that he could choose anyone, as the casemay be.

Ex. 4. Analyse the following sentence:

There are many pairs of substances which can be mixed in any proportions to form homogeneous solutions.

Text 30 A