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Member for
3 ปี 3 เดือนAge: 15+
Level: 10
Language: German
(de)
ไอดี: 693175
04/02/2021
Country code: DE
Country: Germany
Main content: PH-Wert (1267490)
From worksheet author:
Stoffe des Alltags auf einer pH-Skala einordnen. Indikatorfarben benennen.
Other contents:
pH, Indikatot
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