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Molecular Mass

a Who gave th...

Question

(a) Who gave the law of constant proportion?

(b) Write symbols of the following Ions :

(i) Ferric ion (ii) Calcium ion (iii) Peroxide ion (iv) Sulphate ion (v) Nitrate ion

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Solution

(a) Joseph Proust

(b) (i) Fe3+ (ii) Ca2+ (iii) O22- (iv) SO42- (v) NO3-

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S r^{2 +}

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