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Intermediate 1 Unit 1d Acids & Alkalis 1 23 4567 89 10 111213 14 15 22 23242526 161718192021
How would you measure the pH of a substance? A pH paper or universal indicator and check the colour
Name a acid used in the lab. Hydrochloric acid, sulphuric acid, nitric acid.
Name an alkali used in the lab. Sodium hydroxide, lime water and ammonia solution
What are the pH values for an acid?. Below 7
What is the pH of a neutral solution? 7
What are the pH values for an alkali? Above 7
What happens to the acidity as the pH of an acid goes down? It becomes more acidic.
What happens to the pH of an acid when diluted with water? pH goes up
What happens to the pH of an alkali when diluted with water? It goes down
What happens to the acidity of an acid when diluted with water? It becomes less acidic
What happens to the alkalinity of an alkali when diluted with water? It becomes less alkaline
Name a common household acid. Vinegar, lemonade, soda water and coke.
Name a common household alkali. Baking soda, oven cleaner, dishwasher powder, bleach and soaps.
What type of chemical reaction takes when an acid is used? Neutralisation
What are the products when sodium hydroxide neutralises hydrochloric acid? Sodium chloride and water
Name the salt produced when potassium hydroxide neutralises sulphuric acid. Potassium sulphate
Name the salt produced when calcium carbonate neutralises nitric acid. Calcium nitrate
What happens to the pH of an acid when it is neutralised? It goes up to 7
What happens to the pH of an alkali when it is neutralised? It goes down to 7
What are the products when a metal carbonate neutralises an acid? Salt, water and carbon dioxide gas
Give an everyday example of neutralisation. Treatment of indigestion, reducing tooth decay, reducing soil acidity
What is produced when an alkali neutralises an acid? Salt and water
Which oxides dissolve in water in the atmosphere to produce acid rain? Carbon dioxide, sulphur dioxide and nitrogen dioxide
How is sulphur dioxide produced? Burning fossil fuels
How is nitrogen dioxide produced in a car engine? Sparking of air in the engine
Give an example of the damaging effect of acid rain? Destroys buildings made from rock, structures made from steel/iron, soils and animal and plant life.
Intermediate 1 Unit 1d 123 4567 89 10 111213 14 15 22 23242526 161718192021
CHEMISTRY DEPARTMENT WAID ACADEMY Unit 1 Acids and Alkalis.
Calderglen High School
Acids and Alkalis Name_____________________. Universal Indicator and the pH scale Below 7 is _____ Above 7 is _________ Exactly 7 is _________ Universal.
Learning Objectives Acids and Alkalis
Acids and Alkalis. Solutions can be sorted by whether they are: acid, alkali or neutral. When a substance dissolves in water it makes a solution.
pH What is the pH of an ACID? Which type of OXIDE forms an ALKALI? Which type of OXIDE forms an ACID? What happens to the pH of an ACID when it is diluted?
Revision Quiz Acids 1 1.What is the pH scale? 2.What numbers on the pH scale show an acid? 3.What is an indicator? 4.What number is neutral? 5.What colour.
C3 Chemicals in Our Lives – Risks & Benefits Lesson 6: Reacting Alkalis.
Topic 9 ReactionsofAcids. Neutralisation Neutralisation is the reaction of acids with neutralisers. A neutraliser is a substance which neutralises an.
Bases S2 Chemistry Classifying chemicals and chemical reactions.
Intermediate 1 Unit 1b & c Reactions & Bonding
Acid reactions hydrochloric acid + potassium hydroxide potassium chloride + water hydrochloric acid + calcium hydroxide calcium chloride + water.
Chemistry Acids & Alkalis (Bases). What Acids & Alkalis are like? Acids:
Unit 1 Building Blocks Menu To work through a topic click on the title. Substances Chemical Reactions Bonding Acids and Alkalis End.
Acids and Alkalis Can you think of some common, household acids and alkalis? AcidsAlkalis Vinegar Fruit Juice Baking Soda Indigestion Powder Oven Cleaner.
Making salts All Must: Be able to describe how universal indicator can be used estimate the pH of a solution and identify the strength of an acid. Most.
Acids… Learning objectives: Know that salts are formed from reactions with acids. Know how to write correct word equations. Know what salts are formed.
Acids and Bases. Have you ever wondered, “Why do foods taste sour or bitter?”
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