Предмет: Химия, автор: KatjaRabez

с помощью какого вещества можно отличить водные растворы уксусной кислоты и глицерина?

Ответы

Автор ответа: npiecology

свежеосажденный гидроксид меди(2) при смешивании с глицерином образует раствор васильково-синего цвета, при смешивании с кислотой - произойлет расторение осадка гидроксида с образованием светло-голубого раствора.

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Задание 3. Заполните пропуски подходящими по смыслу словами:
1) A physician is a … who deals with promoting, … or restoring human health.
2) He must examine his patient … .
3) A good doctor must have deep knowledge in academic disciplines and a … competence in applied practice.
4) The doctor can make a correct diagnose and … .
5) A general practitioner deals with treatment of disease, injury and other physical and mental … .
6) He has to know how to talk to sick people, to make decisions and … .
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Задание 4. Подберите дефиницию для слов из левой колонки:
consideration
compassion
a physician
decent
competence
to maintain

-when you think about smth carefully
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-socially acceptable or good
-to continue to have; to keep in existence
-the ability to do smth well
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