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PiXL GetIT!
GCSE Chemistry
Topic – Acids and bases   
© Copyright The PiXL Club Ltd, 2017
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2. GetIT – Acids and bases
Acids – have a pH less than 7 and contain hydrogen ions (H+) Bases – have a pH greater than 7 Alkalis – bases that are soluble in water and contain hydroxide ions (OH-) Neutral – pH 7 Acid + base  salt +water

3. Match IT Acid Alkali Base pH Neutralisation Hydrogen ion Hydroxide ion
Substance that can neutralise an acid to form a salt and water
Alkali
Reaction between an acid and a base which forms a salt and water
Base
Released by alkalis . OH- pH
Changes colour to show how acidic or alkaline a solution is
Neutralisation
Soluble base with a pH value higher than 7. Contain hydroxide ions
Hydrogen ion
A solution with a pH value of 7
Hydroxide ion
A number which shows how strongly acidic or alkaline a solution is
Neutral
Released by acids. H+
Indicator
A solution with a pH value less than 7. Produce hydrogen ions

4. Match IT - Answers
Acid
A solution with a pH value less than 7. Produce hydrogen ions
Alkali
Soluble base with a pH value higher than 7. Contain hydroxide ions
Base
Substance that can neutralise an acid to form a salt and water pH
A number which shows how strongly acidic or alkaline a solution is
Neutralisation
Reaction between an acid and a base which forms a salt and water
Hydrogen ion
Released by acids. H+
Hydroxide ion
Released by alkalis. OH-
Neutral
A solution with a pH value of 7
Indicator
Changes colour to show how acidic or alkaline a solution is

5. Label the equipment used to test for carbon dioxide and hydrogen gas
Label IT
Label the equipment used to test for carbon dioxide and hydrogen gas

6. Label IT - Answers Bung Delivery tube Test tube Limewater Hydrogen gas
Lit splint