Reactions Of Metals With Water

The video explores the reactivity of different metal groups with water. Group 1 alkali metals react vigorously, forming metal hydroxides and hydrogen gas. Lithium reacts gently, while potassium's reaction is more violent. Group 2 alkali earth metals are less reactive; beryllium is inert, magnesium reacts slightly, and strontium forms a solid hydroxide. Transition metals and elements like tin and lead are generally inert in water. Aluminum forms a protective oxide layer, preventing further reaction.

What happens when lithium metal reacts with water?

• It forms lithium oxide and hydrogen gas.

• It forms lithium hydroxide and hydrogen gas.

• It forms lithium chloride and oxygen gas.

• It forms lithium carbonate and carbon dioxide.

Why is the reaction of potassium with water more violent than that of lithium?

• Potassium releases more heat, igniting hydrogen gas.

• Potassium forms a different compound with water.

• Potassium is less reactive than lithium.

• Potassium does not react with water.

Which Group 2 metal is too inert to react with water?

• Calcium

• Beryllium

• Strontium

• Barium

What is a common characteristic of transition metals regarding their reaction with water?

• They generally do not react with water.

• They form soluble hydroxides easily.

• They react vigorously with water.

• They form explosive compounds with water.

How does aluminum react with water?

• It does not react with water at all.

• It forms aluminum chloride.

• It reacts explosively with water.

• It forms a protective layer of aluminum oxide.