Properties and Reactions of Metal Hydroxides

The video tutorial explains the decomposition of metal hydroxides into metal oxides and water. It provides examples with sodium hydroxide, magnesium oxide, vanadium, and iron(III) hydroxide, detailing the chemical reactions and the formation of solid metal oxides and liquid water.

What are the products formed when sodium hydroxide decomposes?

• Sodium hydroxide and oxygen

• Sodium oxide and hydrogen

• Sodium oxide and water

• Sodium and oxygen

Which of the following is a solid at room temperature?

• Sodium hydroxide

• Sodium oxide

• Water

• Oxygen

What is the formula for magnesium oxide formed from the decomposition of magnesium hydroxide?

• MgOH

• Mg2O

• MgO

• Mg2OH

What is the charge of vanadium in the decomposition of vanadium hydroxide?

• 4+

• 5+

• 2+

• 3+

What are the products of vanadium hydroxide decomposition?

• VO and water

• V2O5 and water

• V2O3 and water

• VO2 and water

What is the formula for iron(III) oxide formed from the decomposition of iron(III) hydroxide?

• Fe2O3

• FeO

• FeO2

• Fe3O4

What is the charge of iron in iron(III) hydroxide?

• 1+

• 3+

• 4+

• 2+

Which of the following is a liquid at room temperature?

• Water

• Iron(III) hydroxide

• Iron(III) oxide

• Vanadium oxide

What type of reaction is the decomposition of metal hydroxides?

• Decomposition

• Synthesis

• Single replacement

• Double replacement