Properties of Ionic and Covalent Compounds

What structure do ionic compounds typically form?

• Liquid pools

• Plastic-like solids

• Crystals

• Gaseous clouds

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NGSS.HS-PS1-3

What are the melting and boiling points of ionic compounds like?

• High melting and boiling points

• Low melting and boiling points

• No melting or boiling points

• Variable melting points only

Tags

NGSS.HS-PS1-3

How do ionic compounds behave when force is applied?

• They bounce back

• They stretch

• They shatter

• They become malleable

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NGSS.HS-PS1-3

NGSS.HS-PS2-4

Are ionic compounds usually soluble in water?

• Only in cold water

• Only in hot water

• No, they are insoluble

• Yes, they are soluble

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NGSS.HS-ESS2-5

What happens when ionic compounds are dissolved in water?

• They become flammable

• They conduct electricity

• They turn into gas

• They freeze immediately

Tags

NGSS.MS-PS1-2

What state can covalent compounds be found in?

• Only solid

• Solid, liquid, or gas

• Only liquid

• Only gas

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

How do covalent compounds compare to ionic compounds in terms of melting and boiling points?

• No melting or boiling points

• The same melting and boiling points

• Higher melting and boiling points

• Lower melting and boiling points

Tags

NGSS.HS-PS1-3

Are covalent compounds good conductors of electricity?

• Only in liquid form

• Poor conductors

• Moderate conductors

• Yes, excellent conductors

Tags

NGSS.HS-PS1-3

Do covalent compounds usually dissolve in water?

• Only with heat

• No, they do not usually dissolve

• Only specific types

• Yes, very easily

What is a distinctive property of many covalent compounds?

• They are always solid

• They are flammable

• They glow in the dark

• They expand in water