C2 Salts Flashcards
How is an insoluble base like copper oxide used to make a soluble salt?
Excess copper oxide is added to acid and the extra is filtered out before evaporation and crystallisation
What scale measures acidity or alkalinity of a solution?
pH
What are metal oxides and hydroxides?
Bases
What acid is used to make a chloride salt?
Hydrochloric acid
What ions make a solution acidic?
H+
What is a precipitate?
Solid insoluble salt
How could an insoluble salt be removed?
Filtration
What acid is used to make a nitrate salt?
Nitric acid
Is ammonia an acid or an alkali?
Alkali
Give one use of making insoluble salts?
Photography
Acids and alkalis reacted completely produce a salt solution, what substance is used to show when this has happened?
Indicator
What 2 chemicals could be used to make an insoluble salt of lead chloride?
Sodium chloride
Lead nitrate
Give an ionic equation that represents neutralisation.
H+ + OH- → H2O
Why are ammonium salts important?
Make fertilisers
What salt is produced if potassium hydroxide reacts with nitric acid?
Potassium nitrate
What is a soluble hydroxide?
Alkali
Metals can react with acids to make soluble salts, why cannot all metals be used in this way?
Not reactive enough or too reactive
Give the formula for ammonia?
NH3
What ions make a solution alkaline?
OH-
What salt is produced if iron reacts with sulfuric acid?
Iron sulfate
What salt is produced if sodium carbonate reacts with hydrochloric acid?
Sodium chloride
What acid is used to make a sulfate salt?
Sulfuric acid
How can salt solutions be made into a solid salt?
Evaporation and crystallisation
