Which of the following is NOT a property of ionic compounds?

• They conduct electricity when molten

• They conduct electricity when in solution

• They have high boiling points

• They are insoluble in water

What is the charge on a Hydrogen ion?

• +1
• 1
• 2

Tags

NGSS.HS-PS1-2

When an atom loses an electron, it becomes a:

• positive ion
• negative ion
• neutral ion
• neutral atom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is a characteristic property of ionic compounds?

• They form hard, brittle crystals with characteristic shapes
• They have low melting points
• They have low boiling points
• They contain no charged particles

Tags

NGSS.HS-PS1-3

In what form can an ionic compound conduct electricity?

• when dissolved in water
• as a solid
• as a crystal
• when warmed slightly

Nitrogen will ____ electrons when forming an ionic bond.

• gain 1
• lose 1
• gain 3
• lose 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bonds form between metals and ____.

• metalloids
• metals
• nonmetals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

which types of elements become cations?

• nonmetals
• all metals
• only transition metals
• some metals and some metalloids

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are covalent compounds mainly comprised of (made of)? 

• Metals
• Non-metals
• Metals and Non-metals
• Metalloids 

Decide which is example is NOT a covalent compound

• H₂O
• CO₂
• SO₄
• CaCl₂