🟡 5.54: REVIEW WITH QUIZIZZ: EXAM UNIT 5: 5D 11W S1 23: CHM

How many valence electrons are found in an atom of calcium?

• 1 valence electron
• 2 valence electrons
• 3 valence electrons
• 20 valence electrons

Which of the following substances contains ionic bonding?

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The compound MgO is useful because of its fire-proofing qualities. What is the chemical name of this compound?

• Magnesium oxide
• Magnesium (II) oxide
• Magnesium monoxide
• Monomagnesium monoxide

Which of the following elements would NOT form an ionic bond together?

• Mg and O
• Ca and K
• Zn and S
• Al and Br

The compound Al2O3 is used in the creation of glass and lenses. What is the chemical name of this compound?

• Dialuminum trioxide
• Aluminum (II) oxide
• Aluminum (III) oxide
• Aluminum oxide

What is the chemical formula of the compound magnesium nitride?

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What is the correct chemical name of the compound Au2O3?

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The compound CoCl2 is a bright blue, crystalline solid with multiple uses. What is the chemical name of this compound?

• Monocobalt dichloride
• Cobalt (II) chloride
• Cobalt dichloride
• Cobalt chloride

Calcium sulfide is a compound found in meteorites. What is the chemical formula of this compound?

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Beryllium fluoride is a stable chemical used in nuclear reactors. Which response shows the correct formula and the correct type of bonding in the compound?

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