Question

(c) An element X (Z=20) combines with an element Y (Z=8) to form a compound XY.
Answer the following questions
(i) Identify the element X and Y. Write the formula of XY.
(ii) Write the formula of X with nitrate and sulphite
(iii) State whether X and Y is a metal or non metal.

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Answer 1

Answer:

Ca(No3)2 x is metal while y is non metal

Answer 2

Answer:

HI FRIEND

I) X - Calcium. Y - Oxygen , XY - CaO

II) Nitrate - Ca(NO3)2. Sulphite - CaSO3

III) X is a metal Y is a non metal

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