Last updated on Oct 23, 2026

Acids and Bases (LC 2027) (Leaving Cert Chemistry): Flashcards

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Types of Reactions Involving Acids and Bases

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3 types of acid-base reactions

Neutralisation, acid-carbonate, acid-metal

Products of neutralisation

Salt + water

Products of acid-carbonate reactions

Salt + water + carbon dioxide

Products of acid-metal reactions

Salt + hydrogen gas

Ionic equation for neutralisation

$H^+ + OH^- \rightarrow H_2O$

Observable sign of acid-carbonate reaction

Fizzing/effervescence ( $CO_2$ gas produced)

Test for hydrogen gas

Lighted splint produces 'pop' sound

What are spectator ions

Ions that don't participate in the reaction

Function of antacids

Neutralise excess stomach acid

Agricultural use of lime ( $Ca(OH)_2$ )

Neutralise acidic soils

Formula for carbonate ion

$CO_3^{2-}$

Key property of hydrogen gas

Flammable

Metals that don't react with dilute acids

Gold and platinum

Product common to all 3 acid-base reaction types

Salt

Why $CO_2$ produced in acid-carbonate reactions

Carbonic acid ( $H_2CO_3$ ) decomposes to $H_2O$ + $CO_2$

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