Subject acceleration (also called partial acceleration) is a flexible _ which can advance a student in one field, such as mathematics or language, without changing

hchv hchv    2   17.04.2019 04:00    4

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poshel0naher poshel0naher  04.06.2020 02:50

KHCO3 + KOH = K2CO3 + H2O

K2CO3 = K2O + CO2

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