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Alineshka

5 - 9 классы

But it is hardly fair to say that American media do not try to raise the cultura...
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Из 320 г 5% раствора NaOH выпарили 120 г воды какой стала массовая доля NaOH в р...
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см) с массовой долей хлороводорода 20%. Определите массу образовавшейся воды...
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Mass media (that is the press, the radio and television) play an important in th...
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