Ionic Bonds and Ionic Substances

Which two compounds are Ionic bonds?

• water(H20)  and rust(Fe2O3)

• water(H2O) and carbon dioxide(CO2)

• rust(Fe2O3) and salt(NaCl)

• oxygen gas(O2) and nitrogen gas(N2)

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Ionic bonds are between...

• Metal and Non-metal

• Non-metal and Non-metal

• Metal and Metal

• Metalloids

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How are ionic bonds formed?

• Transfer of electrons

• Sharing of electrons

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What type of bond is this?

• ionic

• covalent

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An ionic bond forms when 

• Valence electrons are shared

• a sea of mobile electrons surround the cations

• valence electrons are transferred between atoms

• none of the above

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What is the type of bond formed when a metal chemically bonds with a nonmetal by GIVING its valence electrons?

• ionic bond

• covalent bond

• atomic bond

• molecular bond

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Which two substances are ionic compounds?

• sodium chloride (NaCl)

• carbon dioxide (CO₂)

• water (H₂O)

• magnesium oxide (MgO)

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Which three of the following are features of ionic compounds? (click 3 boxes)

• They have bonds between metals and non-metals.

• They have bonds between two non-metals.

• They form simple molecular structures.

• They form giant ionic lattices.

• They involve the transfer of electrons.

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Ionic compounds form giant ionic lattices. What forces hold the giant ionic lattices together?

• strong frictional forces between the surfaces of the atoms

• strong magnetic forces of attraction between the poles of ions

• strong electrostatic forces of attraction between oppositely charged ions

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Why do ionic compounds have high melting and boiling points?

• Their ions are free to move.

• Their ions are held in fixed positions.

• They have many strong bonds.

• They have many weak bonds.

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