Question

which type of crystalline solid is formed by each substance: (a) cacl2 (b) fe (iron); (c) sugar (c12h22o11); (d) nh3(s)? (a) (select) (b) (select) (c) (select) (d) (select)

Answer 1

Answer:

the answer is a) ionic b)metallic c)molecular d)covalent

Explanation:

crystalline solids are of 4 types- ionic covalent metallic molecular.

cacl2 have ionically bonded atoms which constitute ionic compounds .

fe (iron) is a metal and fellow atoms are bonded by metallic bonds .

sugar (c12h22o11) is a molecular crystalline solid, and that can be deduced by examining the structure and formula of sugar, its intramolecular and intermolecular forces, and its properties.

n-h bonds are covalently bonded . hence they are covalent crystals

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