I. Choose the right word to fill in the gap.

I. Choose the right word to fill in the gap.

1. If the work done by a force depends only on the initial and final stages and not on the path taken, then this type of force will be ________ force.

a) conservation

b) conserving

c) conservative

2. Iodoethane _______ with sodium to form butane.

a) reacts

b) reaction

c) reacting

3. First _______ potential is less than second ionization potential.

a) ion

b) ionization

c) ionizable

4. Chloroform is slowly _______ by air to carbonyl chloride.

a) oxidize

b) oxidized

c) oxidizing

5. Electrophoresis is movement of colloidal particle under the influence of ______ field.

a) electric

b) electrical

c) eclectoral

II. Choose the correct alternative to complete sentences using Participle I or Participle II.

1. A mixed/mixing solution of nickel and copper sulphates were subjected to electrolyses.

2. While made/making this experiment we noticed that the substance changed its colour.

3. Energy is liberated as a result of the reaction produced/producing hydrogen.

4. Sodium hydroxide produced/producing electrolytically contains sodium chloride as an impurity.

5. Some substances produce conducting solutions when dissolved/dissolving in water.

III. Translate the text from English into Russian.

The time dependence of the evaporation and condensation rates is worth considering. While growing, the condensation rate eventually becomes equal to the rate of evaporation. At this time, the number of molecules entering and leaving the vapour per unit time is the same, and, consequently, the pressure of the vapour stops increasing and remains constant. The system being left undisturbed at a fixed temperature, evaporation and condensation continue at equal rates, and the pressure of the vapour remains unchanged. This, then, is a situation of equilibrium between the two phases. Note particularly that at equilibrium, evaporation and condensation do not stop, but that the constancy of the equilibrium vapour pressure is a consequence of these opposing processes occur at equal rates.

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