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tvmerlvn
@tvmerlvn
October 2021
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Химия, 9 класс.
Тема: Решение задач на раствор с использыванием химической реакции.
[1] Дано:
m_раствора Na2CO3 = 200 г
W Na2CO3 = 10%
+HCl
Найти: V(H2) = ?
[2] Дано:
m_раствора CuSO4 = 600 г
W CuSO4 = 20%
+NaOH
Найти: m осадка = ?
хелп плиз
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