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8-sinf Kimyo olimpiada №3

Yanvar 3, 2023

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8-sinf Kimyo olimpiada №3

30.12.2022 yil oo.uzedu.uz

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Quyidagi moddalarning nechtasining molekulasida 10 ta atom mavjud emas 1) malaxit 2) ammoniy gidrofosfat 3) dolomit 4) aluminiy digidroksosulfat 5) kalsiy formiat 6) kaliy geksaxlorferrat (III)7) xrom(III)xlorat

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10% nitrat kislota hosil qilish uchun 30% 50g nitrat kislotaga qancha suv qo’shish kerak?

100g

15g

70g

25g

3 / 25

B

C

D

A

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A

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C

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B

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