REACTIVITY SERIES GCSE BITESIZE

It is useful to place carbon and hydrogen into the reactivity series because these elements can be used to extract metals. However, copper can be extracted using carbon or hydrogen. More slowly than zinc. This table summarises some reactions of metals in the reactivity series. Reactions with steam Magnesium reacts slowly when it is first added to water, but a layer of insoluble magnesium hydroxide forms. In this reaction, magnesium is oxidised – it gains oxygen to form magnesium oxide – and water is reduced – it loses oxygen to form hydrogen. However, if steam is passed over hot magnesium, a vigorous reaction happens:

Non-metals in the reactivity series It is useful to place carbon and hydrogen into the reactivity series because these elements can be used to extract metals. A metal’s relative resistance to oxidation is related to its position in the reactivity series – in general, the lower down a metal is, the greater its resistance to oxidation. Note that zinc and iron can be displaced from their oxides using carbon but not using hydrogen. The tables show how the elements react with water and dilute acids: When a metal reacts with a dilute acid , a salt and hydrogen are formed. Aluminium is unusual because it is a reactive metal that does not react with water. The reactivity series of metals The reactivity series of metals is a chart showing metals in order of decreasing reactivity.

A metal below hydrogen in the reactivity series will not react with dilute acids. When this layer is removed, the observations are more reliable. In general, the more reactive the metal, the bjtesize rapid the reaction is. One way to remember the order of metals in the reactivity series is to think of a phrase or sentence, which uses the first letter of each metal in the series. Platinum reatcivity placed below gold in the reactivity series.

Hydrogen is always given off when a metal reacts with water, steam or a dilute acid.

This protects the metal and stops it reacting. When a metal bitesizw with a dilute acida salt and hydrogen are formed. A metal’s relative resistance to oxidation is related to its position in the reactivity series – in general, the lower down a metal is, the greater its resistance to oxidation Reactions of metals with dilute acids When a metal reacts with a dilute acida serids and hydrogen are formed.

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The reactivity series In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom. Reactions with steam Magnesium reacts slowly when it is biitesize added to water, but a layer of insoluble magnesium hydroxide forms. When a metal reacts with water, a metal hydroxide and hydrogen are formed. Reactions of metals with water When a metal reacts with water, a metal hydroxide and hydrogen are formed.

Reactivity series and extraction of metals

A good way to remember the order of a reactivity series of metals is to use the first letter of each one to make up a silly sentence.

Platinum will not react with dilute acids. Hydrogen is shown for comparison: However, copper can be extracted using carbon or hydrogen. In this reaction, magnesium is oxidised – it gains oxygen to form magnesium oxide – and water is reduced – it loses oxygen to form hydrogen. The reactivity series of metals The reactivity series of metals is a chart showing metals in order of decreasing reactivity. A reactivity series of metals reeactivity include any elements. Its surface naturally forms a very thin layer of aluminium oxide that keeps water away from the metal below.

More reactive metals have a greater tendency to lose electrons and form positive ions.

The reactivity series of metals is a chart showing bitsize in order of decreasing reactivity. Metals below hydrogen in the reactivity series do not react with dilute acids, and both gold and platinum are placed below hydrogen. Here is the reactivity series including carbon and hydrogen: For example, sodium reacts rapidly with cold water: Non-metals in the reactivity series It is useful to place carbon and hydrogen into the reactivity series because these elements can be used to extract metals.

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More slowly than zinc.

Observations of the way that these elements react with water, acids and steam enable us to put them into this series. The more reactive the metal, the more rapid the reaction is.

Predict its reaction with dilute acids and explain your answer. Question Platinum is placed below gold in the reactivity series. Magnesium reacts slowly when it is first added to water, but a layer of insoluble magnesium hydroxide forms.

Aluminium is unusual because it is a reactive metal that does not react with water. For example, magnesium reacts rapidly with dilute hydrochloric acid: It is useful to place carbon and hydrogen into the reactivity series because these elements can be used to extract metals.

Reactivity series and extraction of metals – GCSE Science – BBC Bitesize

Note that zinc and iron can be displaced from their oxides using carbon but bitesizw using hydrogen. However, if steam is passed over hot magnesium, a vigorous reaction happens: This table summarises some reactions of metals bcse the reactivity series.

In general, the more reactive a metal is: This is because its protective aluminium oxide layer makes it appear to be less reactive than it really is. In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom. The tables show how the rezctivity react with water and dilute acids: A metal’s relative resistance to oxidation is related to its position in the reactivity series – in general, the lower down a metal is, the greater its resistance to oxidation.

Note that aluminium can be difficult to place in the correct position in the reactivity series during these experiments.