December 2018 1 4 Report
Zad.1
Do 700 gramow wody wsypano 30 dag soli. Oblicz stezenie procentowe roztworu.

PROSZE ZEBY ZADANIE BYLO ZROBIONE W DAG.

Zad.2
Do wykonania 36 kg stopow miedzi z cynkiem uzyto 9 kg cynku. Jaki jest procent sklad tego stopu?
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