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8-sinf Kimyo olimpiada №3

Yanvar 3, 2023

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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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Osh tuzining qaynash haroratini aniqlang.

500°C

90000°C

50°C

1413°C

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18g temir(II)-gidroksid parchalanganda qancha gramm temir(II)-oksid va suv hosil bo’ladi?

3,6g; 14,4g

4,5g ;7,2g

14,4g; 1,8g

14,4g; 3,6g

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A

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D

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D

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D

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B

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A

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C

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A

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B

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A

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