8-sinf Kimyo olimpiada №3

Yanvar 3, 2023Yanvar 3, 2023 InfoMaster fikr bildirilmagan.

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Vaqtingiz tugadi!

8-sinf Kimyo olimpiada №3

30.12.2022 yil oo.uzedu.uz

Online olimpiada savollari!

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Teng hajmli geliy bilan kislorod aralashmasining havoga nisbatan zichligini toping

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0,93

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0,62

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20.4 g H₂S mo’l miqdorda kislorodda yondirildi. Olingan gaz o’yuvchi natriy bilan reaksiyasida nordon tuz massasi o’rta tuz massasidan 16.4 g ga ko’p bo’lsa, nordon tuz massasini (g) da aniqlang.

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10,4

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