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Bonding

This will contain important info on the different bonding types

QuestionAnswer
What are properties of covalent molecular substances? Non-conductors of electricity, low melting and boiling points, liquids or gases at room temperature, solids are soft and easy to mold, only the polar molecules are soluble in water
What are properties of ionic compounds? Hard and brittle, high melting and boiling points, solids at room temperature (unless dissolved), can conduct electricity in a solution or as a liquid, soluble in water but not petroleum
What are the properties of metals? Shiny, hard, sonorous(can make sound), compact/rigid shape, high melting and boiling points, conducts heat and electricity, malleable(can be flattened into sheets without breaking) and ductile(can be stretched into wires)
What are the properties of covalent network compounds? Non-conductors of electricity, very hard, solids at room temperature, high melting and boiling points, insoluble in everything
What is an ionic compound/bonding? metal and non-metal
What is metallic bonding between? two metals
what is covalent bonding between? two non-metals
Types of non-molecular solids Network covalent, Ionic, and Metallic solids
Network covalent solids are joined by a continuous network of covalent bonds which form crystals that are essentially one huge molecule
Ionic solids are held together with ionic bonds between oppositely charged adjacent ions
Metallic solids are structures made of electrons and cations which may or may not have a charge
Ionic solids don't have _________________, and are held together with _________________ simple/discrete molecules, ionic bonds and electrostatic interactions between oppositely charged ions
Ionic solids are _____________, and have __________ Non-volatile, high melting points (600ºc-2000ºc) (because to melt bonds must be broken)
Ionic solids don't _____________, but can be good ___________ when ____________ in ________ conduct electricity conductors melted/dissolved water
Many Ionic solids are soluble in ___________, but not in ____________ polar solvents (like water), non-polar solvents
Strength of ionic bonds depends on 2 things The charges of ions, and the size of ions
Because there are only _______ bonds, network solids are extraordinarily _________ covalent bonds, strong
The higher the IMF, the higher the __________ Melting point
Only metallic crystals ___________ in solid and liquid state conduct electricity
Ionic crystals will conduct electricity in __________ dissolved state (because ions are free to move to positive and negative poles)
Strong attractions between the basic units of network crystals (covalent bonds) cause them to be _________. insoluble
Polar/ionic solutes dissolve in polar/ionic solvents and non-polar solutes dissolve in non-polar solvents because of the _____________ Like-dissolves-like rule
How are Network Covalent Solids bonded? Covalently
Why do network covalent solids have high melting points? because bonds have to be broken to melt
Why are network covalent solids insoluble? because bonds have to be broken to dissolve
Created by: pandabear66*
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