Reactivity series

Which is the correct word equation for the reaction of sodium with water?

Which is the correct balanced chemical equation for the reaction of magnesium with steam?

Which is the correct chemical equation for the reaction of zinc with hydrochloric acid?

Four different metals are added with hydrochloric acid. According to the observations (check picture), the most reactive metal is

Four different metals are added with hydrochloric acid. According to the observations (check picture), the second most reactive metal is

Four different metals are added with hydrochloric acid. According to the observations (check picture), the third most reactive metal is

Four different metals are added with hydrochloric acid. According to the observations (check picture), the least reactive metal is

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the first observation

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the second observation

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the third observation

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the third observation

Why aluminium appears unreactive?