Respuesta :
Calcium chloride is made up of positive calcium ions and negative chloride ions that are mutually attracted to each other, which is the essence of an ionic bond. So, CaCl2 is an ionic solid.
Pure calcium is an element in which the element is bound together by a metallic bond, and thus, is a metallic solid.
Frozen Ethanol is a molecular solid
Rhombic sulfur also has a covalent bond.
Pure calcium is an element in which the element is bound together by a metallic bond, and thus, is a metallic solid.
Frozen Ethanol is a molecular solid
Rhombic sulfur also has a covalent bond.
[tex]\boxed{{\text{Frozen ethanol}}}[/tex] is a [tex]\boxed{{\text{molecular solid}}}[/tex].
[tex]\boxed{{\text{Calcium fluoride}}}[/tex] is an [tex]\boxed{{\text{ionic solid}}}[/tex].
[tex]\boxed{{\text{Rhombic sulfur}}}[/tex] is a [tex]\boxed{{\text{covalent solid}}}[/tex].
[tex]\boxed{{\text{Pure calcium}}}[/tex] is a [tex]\boxed{{\text{metallic solid}}}[/tex].
Further Explanation:
Covalent solids
These are held together by covalent bonds and also called network solids. Localized electrons are present in between the bonded atoms. Examples of such solids are silica and diamond.
Ionic solids
These are held together by ionic bonds. These have lattices that are made up of oppositely charged ions. These solids have high melting points. Examples of such solids are NaCl and KI.
Metallic solids
These are held together by metallic bonds that are present between metal atoms. These are good conductors of electricity due to the presence of delocalized electrons. Copper, gold, zinc are examples of metallic solids.
Molecular solids
These are groups of molecules held together by intermolecular forces. These have low melting points. These have localized electrons in them. Solid water or ice is an example of a molecular solid.
Vander Waal forces are responsible to hold the molecules in frozen ethanol. Therefore frozen ethanol is a molecular solid.
Calcium fluoride is formed by the combination of one [tex]{\text{C}}{{\text{a}}^{2 + }}[/tex] and two [tex]{{\text{F}}^ - }[/tex] so ionic bonds exist between this molecule. Therefore calcium fluoride is an ionic solid.
Rhombic sulfur is an allotrope of sulfur. Sulfur has the tendency to form compounds by mutual sharing of electrons. Therefore, rhombic sulfur is a covalent solid.
Pure calcium contains only calcium atoms in it. Since calcium is a metal, pure calcium is a metallic solid.
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Answer Details:
Grade: Senior School
Chapter: Solid State
Subject: Chemistry
Keywords: ionic solid, molecular solid, covalent solid, metallic solid, pure calcium, calcium fluoride, frozen ethanol, rhombic sulfur.
