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reactivity series aqa
The reactivity series is a list of metals arranged in order of their __________.
reactivity.
The most reactive metal in the reactivity series is __________.
Potassium (K).
Gold and silver are very __________ and found in their natural state.
unreactive.
Metals react with oxygen to form __________.
metal oxides.
The chemical reaction between magnesium and oxygen produces __________.
Magnesium Oxide.
Highly reactive metals, such as potassium and sodium, react __________ with oxygen.(speed)
rapidly
Less reactive metals like iron and copper may only react with oxygen when __________.
heated.
Very reactive metals such as potassium, sodium, and calcium react __________ with water. (force)
violently.
vigorously
When potassium reacts with water, it produces potassium hydroxide and __________.
hydrogen gas.
Unreactive metals such as copper, silver, and gold __________ with water.
do not react.
More reactive metals react __________.
faster.
more vigorously
For the hydrogen gas test, a lit splint produces a __________ sound when hydrogen is present.
'pop'.
Metals react with dilute acids to form __________ and hydrogen gas.
salts.
During the reaction of magnesium with hydrochloric acid, __________ is produced.
hydrogen gas.
The general equation for metal reacting with acid is __________.
Metal + Acid = Salt + Hydrogen.
Hydrochloric acid produces __________ salts when reacted with metals.
Chloride.
When zinc reacts with sulfuric acid, it forms zinc __________ and hydrogen gas.
sulfate.
The formula for magnesium chloride formed when magnesium reacts with hydrochloric acid is __________.
MgCl₂.
magnesium chloride
The type of acid used determines the __________ formed.
salt.
Nitric acid (HNO₃) reacts to produce __________ salts.
Nitrate.
The chemical reaction 2K + 2H₂O → 2KOH + H₂ represents potassium reacting with __________.
water.
The first three metals in the reactivity series are potassium, sodium, and __________.
calcium.
Reactive metals tend to lose __________ more easily to form positive ions.
electrons.
The reaction of metals with heat often leads to __________ reactivity.
increased.
faster
Bubbling or fizzing indicates that __________ gas is produced during a reaction with acids.
hydrogen.
An example of a metal that does not react with acids is __________.
gold.
silver
copper
Metal oxides are formed when metals react with __________.
oxygen.
The chemical equation for zinc reacting with sulfuric acid is __________.
Zn + H₂SO₄ = ZnSO₄ + H₂.
Zn + H2SO4 = ZnSO4 + H2
Magnesium reacts with hydrochloric acid to form __________ and hydrogen gas.
Magnesium chloride.
During the reaction of metals with acids, the metal __________ as it dissolves.
disappears.
The reaction of metals with water typically produces metal hydroxides and __________.
hydrogen.
When potassium hydroxide is formed, the reaction involves the metal __________ .
potassium.
The reactivity of metals decreases down the __________.
reactivity series.
To test for hydrogen gas, you should use a __________ splint.
lit.
Reactions of less reactive metals often require __________ to proceed.
heat.
Metal + Acid gives you salts, hydrogen gas, and often __________ as a byproduct.
bubbling
fizzing
Gold and silver can be found in their natural state due to their __________.
unreactivity.
Calcium, being a very reactive metal, reacts violently with __________.
water
oxygen
acid
The formation of salts depends on the type of __________ used.
acid.
Magnesium forms magnesium oxide when it reacts with __________.
oxygen.
The same metal can form different salts depending on the __________ used.
acid.
