Naming and Writing Ionic compounds

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

What is the charge on an Aluminium ion?

• 3
• +3
• +2
• +1

Tags

NGSS.HS-PS1-1

What is the charge on a chloride ion?

• -1
• 1
• +2
• +1

Tags

NGSS.HS-PS1-1

Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion
• Bromide has a 2- charge
• Bromide has a 2+ charge
• There are 2 magnesium ions to every bromide ion

Tags

NGSS.MS-PS1-1

In the chemical formula for an ionic compound, which item is written first?

• positive ion
• negative ion
• subscript
• the female

Tags

NGSS.MS-PS1-1

In what form can an ionic compound conduct electricity?

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

Elements in Group 1 lose one electron to form ions with a _________________ charge.

• 1+
• 2+
• 0
• 1-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is the correct name for CaBr₂?

• Calcium Bromine
• Bromine Calcium
• Calcium Bromide
• Carbon and Bromine

What is the formula of Sodium oxide?

• Na2O
• NaO₂
• Na₂O₂
• Na₂O