Topic 1 : Neutralisation Flashcards
(24 cards)
The pH of acids are …
Less than seven
The pH of alkalis are …
Greater than seven
What is the definition for neutralisation?
When an acid reacts to an alkali it helps to neutralise it and forms salt and water.
When we use the following acid, what salt is formed? Hydrochloric acid
Chloride
When we use the following acid, what salt is formed? Sulfric acid
Sulfate
When we use the following acid, what salt is formed? Nitric acid
Nitrate
Is the following chemical a base and an alkali or just a base? Sodium hydroxide
Both
Is the following chemical a base and an alkali or just a base? Calcium oxide
Just a base
Is the following chemical a base and an alkali or just a base? Magnesium hydroxide
Both
Is the following chemical a base and an alkali or just a base? Lithium oxide
Just a base
Is the following chemical a base and an alkali or just a base? Copper oxide
Just a base
Name three examples of neutralisation in everyday life.
A bee sting + baking soda (alkali) Soil treatment (farming) Ingestion Waste from factories (acidic) A wasp sting + acid
Acid + metal = ?
Salt + hydrogen
Acid + alkali = ?
Salt + water
Acid + base = ?
Salt + water
Acid + metal carbonate = ?
Salt + water + carbon dioxide
Calcium carbonate + hydrochloric acid = ? (Salt)
Calcium chloride
Sodium hydroxide + sulfuric acid = ? (Salt)
sodium sulphate
Magnesium + nitric acid = ?
Magnesium nitrate
Potassium + sulfuric acid = ?
Potassium sulfate + water
Hydrochloric acid + sodium oxide = ?
Sodium chloride + water
An acid will turn what colour when added to a universal indicator?
Red
An alkali will turn what colour when added to a universal indicator?
Blue
What type of metal is copper oxide?
A base
