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Chemistry. The subject and its study. Sections of chemistry. Хімія. Предмет і її вивчення. Розділи хімії.

I. Vocabulary

1. Select the appropriate word from the list provided.

properties, alteration, occur, comprise, quantity, bond, join, particle, unique, reaction,

solution, equilibrium

1. All the chemical elements differ by their physical and chemical

2. The ... of mercury with water may lead to very negative consequences.

3. Natural ... was destroyed because of government experiments with ecosystems.

4. This specimen is ..., I have never seen anything like this.

5. Two these elements have ionic ..., that is why they together form a very stable complex

substance.

6. Be very careful when you work with ... of hydrochloric acid, you can burn yourself.

7. When different elements bind together, they undergo chemical ... .

8. The science of chemistry ... many different but nonetheless very important fields.

9. When a pharmacist is preparing a drug, he must think not only of ..., but of quality too.

10. As a result, many subsequent changes may ... .

2. Put words together into phrases.

1) free a) table

2) periodic b) atom 3) chemical c) number

4) atomic d) weight

5) iodine e) change

3. Translate sentences.

1. This chemical combines with air to form a liquid.

2. A chemical that kills weeds. 3. A chemical used to defoliate trees.

4. A lot of chemical reactions are reversible.

5. A chemical used in pest control. 6. A chemical that can inflame the skin.

4. Translate from Ukrainian to English.

Кінетика хімічна — вчення про швидкість хімічних реакцій. Сукупність великого числа атомів. Органічні речовини. Хімічні перетворення органічних сполук. Повільний витік хімічної речовини. Хімічний аналіз грунту.

II. Dialogues

1. Make questions for the answers. Then, in pairs, act out the dialogue.

- _____________________________________________________?

- Chemistry is the study of substances.

- _____________________________________________________?

- There are many fields of chemistry, analytical chemistry, biochemistry, chemical engineering,

organic and inorganic chemistry, electrochemistry.

- ____________________________________________________?

- Analytical chemistry determines the identity and quantity of each

element or compound present in a substance.

- ____________________________________________________?

- Biochemistry is the study of the chemical composition of living matter and of the chemical

processes that occur in living organisms.

- _______________________________________________________?

- Inorganic chemistry is the study of all elements and compounds that do not contain carbon.

These include metals, halogens, and alkalies. Organic chemistry is the study of carbon and its

compounds.

- ________________________________?

- Nuclear chemistry is the study of radioactivity, atomic nucleus, and nuclear reactions, and the

development of applications for radioactive isotopes in rncdicine and industry.

- __________________________________________________________?

- Physical chemistry is the application of physical methods to the study of chemical problems.

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