Pay attention to the names of the reactants. Practice in reading these names. Read out them to your groupmates.

Zn – zinc	O₂ – oxygen
HCl – hydrochloric acid	BaCl₂– barium chloride
KMnO₄- potassium permanganate	CaO – calcium oxide
K₂MnO₄- potassium manganate	H₂SO₄– sulphuric acid
ZnCl₂– zinc chloride	CO₂ – carbon dioxide
MnO₂– manganese oxide (IV)	BaSO₄ – barium sulphate
H₂– hydrogen	CaCO₃ – calcium carbonate

Look at the picture and comment on it from the point of view of chemistry.

Replace the underlined words with their English equivalents from the list. Give the general idea of the text in 2-3 sentences.

fertilizers

petroleum refining

pickling (cleaning)iron rayon battery acid impurities

USES OF SULPHURIC ACID

Pay attention to the names of the reactants. Practice in reading these names. Read out them to your groupmates. - student2.ru Sulphuric acid is one of the most important industrial chemicals. More of it is made each year than is made of any other manufactured chemical. It has widely varied uses and plays some part in the production of nearly all manufactured goods. The major use of sulphuric acid is in the production of удобрений, e.g., superphosphate of lime and ammonium sulfate. It is widely used in the manufacture of chemicals, e.g., in making hydrochloric acid, nitric acid, sulfate salts, synthetic detergents, dyes and pigments, explosives, and drugs. It is used in очистке нефти to wash примеси out of gasoline and other refinery products.

Sulphuric acid is used in processing metals, e.g., in травлении iron and steel before plating them with tin or zinc. Вискоза is made with sulfuric acid. It serves as the electrolyte in the lead-acid storage battery commonly used in motor vehicles (acid for this use, containing about 33% H₂SO₄ and with specific gravity about 1.25, is often called аккумуляторной кислотой).

Watch the video 'Sulphuric Acid Production'. Decide if the sentences are true (T) or false (F).

1. Sulphuric acid is used in the drug production.
2. The small plant makes 60 tons of acid per day.
3. Sulphur is transported as a liquid around 200 degrees Celsius.
4. In the converter sulphur dioxide reacts with oxygen.
5. The catalyst is the most effective at 840 degrees Celsius.
6. About 95% of the original SO₂has been converted to SO₃.
7. The acid concentration must be about 98% at the final stage.

Explain the following words and word-combinations in English.

Reactant	Electrolysis
Product	Neutralization reactions
Breakdown	Redox reactions

Make up the sentences of your own with the words in bold of the text B. Provide your own examples of combustion reactions and precipitation reactions.

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Project Work

Pay attention to the names of the reactants. Practice in reading these names. Read out them to your groupmates. - student2.ru 8. Prepare a report upon one of the following topics:

1. Inorganic chemistry as a science.

2. Differences and similarities between inorganic and organic chemistry.

3. Types of inorganic chemical reactions.

4. The Periodic table as the basis of inorganic chemistry.

9. Study the web sitewww.sciencedaily.comand prepare a report or presentation on inorganic chemistry news. Share the information with the groupmates.

Pay attention to the names of the reactants. Practice in reading these names. Read out them to your groupmates. - student2.ru

UNIT 3. ANALYTICAL CHEMISTRY

I. Lead-in

1. Pay attention to the names of the reactants. Practice in reading these names. Read out them to your groupmates. - student2.ru What topics does analytical chemistry deal with?