July 2022 1 9 Report
pH чистящего средства, предназначенного для чистки жирных поверхностей равен 13. Какое вещество могло бы быть в составе это средства?


Выберите одно:

a. Na2SO4
b. CuCl2
c. Fe(OH)3
d. NaOH
e. H3PO4
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