1. Acids and Alkalis Examples: The ions present in:
Acids are…..
Alkalis are…
Label the pH scale with:
Numbers 1-14
Colour of each pH
Whether each number is a strong acid, weak acid, neutral, weak alkali or strong alkali
Neutralisation:
(explain what neutralisation is. Include: an equation, what happens to the reactantss, what happens to pH)
A substance with a pH
of:
Less than 7 is an…
=7 is
More than 7 is an…
The rule for naming salts...
Concentrated and dilute
What is the difference between a concentrated and dilute acid?
Acids and Alkalis
Match each salt with the substances that react to form it
Reactions of acids:
Acid + Metal
Oxide
Acid + Alkali
Making salts:
hydrochloric acid + potassium
barium sulfate
sulfuric acid + barium
lithium chloride
hydrochloric acid + lithium
potassium chloride
nitric acid + sodium
sodium nitrate
Acid
Salt formed
Hydrochloric acid
Nitric acid
Sulphuric acid

2. Data interpretation: Harry used a data probe to record the pH of some of his favourite drinks:
Indicators
Blue litmus paper
Universal indicator
pH probe and data logger
What does it show you?
Colour in acid
Colour in alkali
Colour in neutral
Advantage of this method
Disadvantage of this method
Drink pH
Orange juice
Coke
Milk
Soda water
Tap water
Which drink is the weakest acid?
Which drink is the closest to neutral?
A dentist suggests that you should try to drink only alkaline or neutral drinks. Which 2 drinks are the most suitable?
What would Harry need to do to ensure he had conducted a fair test?
Harry only tested the drinks once. How could he improve his method?