Question

(i) Sodium sulphite + hydrochloric acid



sodium chloride + water + sulphur

dioxide

(ii) Iron + chlorine


Iron III chloride


(iii) Calcium + nitrogen


calcium nitride


(iv) Zinc sulphide + oxygen


zinc oxide + sulphur dioxide


(v) Silver nitrate


silver +nitrogen dioxide + oxygen

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Answer 1

Answer:

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Explanation:

Na2SO3 + 2HCl → 2NaCl + H2O + SO2

2Fe + 3Cl2 → 2FeCl3

C a(s)+N2(g) → Ca3N2(s)

ZnS + O2 = ZnO + SO2

2AgNO3 →2 Ag + 2NO2 + O2

Answer 2

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Here's your answer ⏎

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Two factors responsible for migration are:

MARRIAGE ✍

✏ Marriage is a very important social factor of migration. In rural areas most of the girls have to migrate to there in law's place of residence after marriage.

EDUCATION ✍

✏ Rural areas,by and large, lack educational facilities, especially those of higher education and rural people have to migrate to the urban centres for this purpose.

☘Hope it helps❢❢

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