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Reactions of metals
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Provides an types of reactions of metals Includes formulae, examples and basic definitions and description of reactions(NOT in depth) 1 Page
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Reactions of metals01 May 2024 13:49
Types of reactions of metals
Metal displacement reactions
Reactions between metals and acids
Reactions between metals and water
Most reactive
Potassium
Metal displacement reactions Sodium
Lithium
Definition: When a more reactive element replaces a less reactive element in its compound Calcium
There are metal displacement reactions and non-metal displacement reactions Magnesium
We can use the reactivity scale to see which metals are more reactive and which are less Aluminium
reactive Carbon
We use the fact that halogens increase in reactivity as the group goes up Zinc
Iron
Tin
Lead
Formula: Hydrogen
Metal oxide + Metal --> more reactive metal oxide + less reactive metal oxide Copper
Silver
Gold
Example Platinum Least reactive
Magnesium + copper oxide --> Magnesium oxide + copper
Reactions between metals and acids
Definition: A metal and an acid react together to form a metal salt and hydrogen gas
When a metal and an acid react together they often produce hydrogen gas which we can see
my observing the effervescence ( fizzing and bubbles)
We can use a glass syringe to measure the bubble to give an exact volume of gas produced
over a certain period of time
Heating the reaction will make them react stronger
The faster the reaction the more reactive the metal
Formula:
Acid + Metal --> Metal salt + Hydrogen gas
Examples:
Hydrochloric acid + Zinc --> Zinc Chloride + Hydrogen gas
H2SO4 + Mg --> MgSO4 + H2
Potassium
Sodium
Lithium React with water
Reaction between metals and water Calcium
Magnesium
Aluminium
Alkali metals react vigorously with water React with steam
Carbon
Zinc
Very reactive metals can react vigorously with water to produce metal hydroxide
Iron
Tin
Less reactive metals won't react with water but steam instead to produce a metal hydroxide
Lead
Hydrogen
Metals below hydrogen on the reactivity scale , very unreactive, wont react with water or
Copper
steam
Silver Don’t react
Gold
Formulae: Platinum
Metal + water --> metal hydroxide + hydrogen gas
Metal + steam --> metal hydroxide + hydrogen gas
Example
Potassium + water --> Potassium Hydroxide + Hydrogen gas
Lead + Steam --> Lead Hydroxide + Hydrogen gas
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