Занимательная химия для детей и взрослых. И. А. Леенсон. Читать онлайн. Newlib. NEWLIB.NET

Информация о произведении:

Автор:	И. А. Леенсон
Издательство:
Серия:
Жанр произведения:	Книги для детей: прочее
Год издания:	2013
isbn:	978-5-98986-320-4, 978-5-271-25110-8

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с 95 до 2,5 % – солидная экономия для такого массового производства. Для определения содержания меди Миллер снимал медь с монеты электрохимически. Интересно, что в 1982 г. выпускались монеты обоих типов, а с 1983 г. – только цинковые с медным покрытием.

Конец ознакомительного фрагмента.

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