An element x of group 2 combines with an another element y of group 17, both belonging to the same period. write the formula of the compound formed. what is the formula of x when it combines with anions sulphate, nitrate and carbonate? what is the nature of the compounds so formed? are these high melting or low melting compounds?
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a) chemical formula will ne XY2
if x reacts with SO4 then its formula is XSO4
If it reacts with NO2 Them its formula is X(NO2)2
and if it reacts with CO3 Then it's formual is XCO3
b) IONIC COMPOUND
c)HIGH MELTING POINT
Explanation:
a) X belongs to grp 2 hence its valency is +2 while Y belongs to 17 grp hence it's valwncy is -1
c) The strong force of attraction between oppositely charged ions means that ionic compounds have high melting and boiling points. When dissolved in water ionic compounds form a solution in which ions can move. This means that these solutions can conduct electricity.
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