Making Predictions Using Reactivity Series

The video tutorial explains the reactivity series of metals, highlighting their properties, uses, and reactivity. It discusses single displacement reactions, where a more reactive metal displaces a less reactive one in a compound. The tutorial provides examples, such as zinc displacing copper in copper (II) sulfate, and explains how the reactivity series can predict reactions and aid in metal extraction from ores. The series also includes hydrogen and carbon for comparison, helping to determine metal reactions with acids and extraction feasibility.

Which of the following statements about the reactivity series is true?

• The series ranks metals based on their color.

• The least reactive metals are at the top of the series.

• The series is used to predict double displacement reactions.

• The most reactive metals are at the top of the series.

What happens when zinc is added to a solution of copper (II) sulfate?

• Zinc displaces copper, forming zinc sulfate and copper metal.

• Copper displaces zinc, forming copper sulfate and zinc metal.

• No reaction occurs because zinc is less reactive than copper.

• Zinc and copper form an alloy in the solution.

In a single displacement reaction, which element can displace another?

• An element that is not in the reactivity series.

• An element that is the same as the one in the compound.

• An element that is more reactive than the one in the compound.

• An element that is less reactive than the one in the compound.

Why is hydrogen included in the reactivity series?

• To predict if a metal will react with water.

• To help predict if a metal will react with an acid.

• To compare the reactivity of metals with non-metals.

• To determine the color of metal compounds.

What is the role of carbon in the extraction of copper from malachite?

• Carbon is used to color the copper metal.

• Carbon reacts with copper to form copper carbonate.

• Carbon is more reactive than copper and helps in its extraction.

• Carbon is less reactive than copper and cannot aid in extraction.