chemistry

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.