Single Replacement Reactions and Activity Series

The video tutorial explains single replacement reactions and how to use the activity series to predict reaction outcomes. It covers the concept of metal activity, demonstrating with examples involving iron, copper sulfate, magnesium, and aluminum chloride. The tutorial also discusses scenarios where no reaction occurs due to lower activity of the single element compared to the compound's metal.

What is a single replacement reaction?

• A reaction where two compounds exchange ions.

• A reaction where two elements combine to form a compound.

• A reaction where a single element replaces another in a compound.

• A reaction where a compound breaks down into two or more elements.

What does the activity series help predict?

• The color change in a reaction.

• The temperature change in a reaction.

• The speed of a reaction.

• The likelihood of a single replacement reaction occurring.

Which metal is more active according to the activity series: copper or silver?

• Silver

• Both are equally active

• Neither is active

• Copper

In the reaction between iron and copper sulfate, which metal ends up in the compound?

• Iron

• Neither metal

• Copper

• Both metals

What is the charge of iron in the compound formed with sulfate in the example?

• 4+

• 3+

• 2+

• 1+

In the reaction between magnesium and aluminum chloride, which element is displaced?

• Magnesium

• Aluminum

• Chlorine

• None

What is the formula of the compound formed when magnesium reacts with aluminum chloride?

• MgCl2

• MgCl

• Mg2Cl

• MgAl

What happens if the element by itself is less active than the element in the compound?

• The elements form a new compound.

• A reaction occurs with a different product.

• The compound decomposes.

• No reaction occurs.

In a no reaction scenario, what is the position of the element by itself in the activity series compared to the element in the compound?

• Lower

• Unrelated

• Higher

• Equal

What is a key takeaway regarding the activity series and single replacement reactions?

• All elements have the same activity level.

• Activity series is irrelevant to single replacement reactions.

• The less active element can replace a more active one in a compound.

• The more active element can replace a less active one in a compound.