The pH scales measures the acidity or alkalinity of a solution. Acids and bases have a wide variety of uses and can react together in neutralisation reactions.
Which of the following are correct?
pH 9 is acid and pH 7 is neutral
pH 4 is acid and pH 7 is neutral
pH 6 is acid and pH 8 is neutral
What type of solution would be formed when sulfur dioxide dissolves in water?
What would be the pH of the solution formed when sodium oxide dissolves in water?
Equal to 7
Less than 7
Which of these everyday substances is alkaline?
Which salt is made when sodium hydroxide reacts with hydrochloric acid?
Which of the following are the correct products from the reaction between magnesium hydroxide and sulfuric acid?
Magnesium sulfate + water
Magnesium sulfate + water + carbon dioxide
Magnesium sulfate + hydrogen
What is the name of the type of reaction that happens between acids and alkalis?
What happens to the pH of an acidic solution as water is added?
It stays the same
Which of the following is a pollution problem associated with acid rain?
Ozone layer depletion
Erodes limestone statues
Which of the following happens to the pH of an acid when it is neutralised?
The pH does not change
The pH increases towards 7
The pH decreases towards 7