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Из натриевой селитры марки А было приготовлено 500 граммов 5% раствора. При электролизе этого раствора на аноде выделилось 40 л

TAISKAKISKA TAISKAKISKA    2   16.04.2019 22:50    16

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Timyr123678 Timyr123678  29.05.2020 21:46
Қазақ, Азиза,ана,апа,ата,аға,аса,ара менің тапқаным осы кешір
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