A) Fe(OH)2
B) Cr203
C) CaO
D) Cu(OH)CI
Shishaga кок rang berish uchun qanday modda qoshish kerak?
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Ñáîðíèê: Kimyo
Ïàðàãðàô:
71.2. Kremniy. Kremniyning birikmalari
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