Activity Series

Front

What is the activity series in chemistry?

Back

The activity series is a list of metals arranged in order of decreasing reactivity. It helps predict whether a metal will displace another in a chemical reaction.

Front

Which metal in the activity series is more reactive: cobalt or copper?

Back

Cobalt is more reactive than copper.

Front

What will happen when a more reactive metal is placed in a solution of a less reactive metal's salt?

Back

The more reactive metal will displace the less reactive metal from its salt solution.

Front

In the reaction Cd (s) + HCl (aq), what does the activity series indicate about the reactivity of cadmium?

Back

Cadmium is more reactive than hydrogen, so the reaction will occur.

Front

What are the products of the reaction Mg + HCl?

Back

The products are magnesium chloride (MgCl2) and hydrogen gas (H2).

Front

What does it mean if a reaction is said to occur based on the activity series?

Back

It means that a more reactive element can displace a less reactive element from a compound.

Front

Will gold (Au) react with hydrochloric acid (HCl) according to the activity series?

Back

No, gold is less reactive than hydrogen and will not displace it from HCl.

Front

What is the significance of the activity series in predicting chemical reactions?

Back

The activity series helps predict whether a single displacement reaction will occur based on the relative reactivities of the metals involved.

Front

How does the activity series help in understanding metal displacement reactions?

Back

It allows us to determine which metals can replace others in reactions, guiding predictions about the outcomes of those reactions.

Front

What is the general rule for predicting if a reaction will occur based on the activity series?

Back

If the free metal is higher in the activity series than the metal in the compound, the reaction will occur.