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This course is the second part of a comprehensive introduction to Chemistry, covering everything you will need to know as you prepare for possible future exams. It doesn't matter how much, or how little, prior knowledge of Chemistry you've got as this course will take you through all the necessary stages.
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|Section 1: The Chemistry of the Elements|
Introduction to the Chemistry of the ElementsPreview
In Lesson 1 we take an in-depth look at the Periodic Table and the arrangement of groups and periods. There is a clear divide between the metals and non-metals, and we consider the differences between the two classified groups. We then cover the chemical properties of the groups, and finish off with an explosive look at the Group1 (Alkali) metals!
00:26 The Periodic Table
04:25 Metals and non-metals
07:58 Groups and their chemical properties
13:50 Group 1 - The Alkali Metals
In this lecture we start by looking at Group 7 elements, or Halogens as they are more commonly known. We cover displacement reactions involving the Halogens, and then move on to oxygen and how it is prepared in the laboratory.
00:22 Group 7 elements
04:40 Reactions of the Halogens
10:15 Halogen displacement reactions
13:10 Redox reactions and electrons - OILRIG
16:07 Gases in the atmosphere
17:37 Oxygen in the air
21.44 The preparation of oxygen in the laboratory
Lesson 4 continues with the chemistry of oxygen, and the formation of oxides. We then look in some depth at the chemistry of carbon dioxide, including its role as a greenhouse gas. There is then a brief introduction to acids, and their reactions with metals, and we finish off with hydrogen and a description of the tests for water.
00:43 Reactions of oxygen - oxide formation
04:15 Carbon dioxide - laboratory preparation
06:15 Carbon dioxide - physical and chemical properties
08:21 Carbon dioxide - uses
09:25 Carbon dioxide - as a greenhouse gas
11:15 Dilute acids
13:10 Acids and metals
16:30 The combustion of hydrogen
19:12 Testing for water
Lesson 4 begins with an explanation of what we mean by the term 'reactivity series' and how the order of metals in the series can be deduced through observations of their relative reactions with water and dilute acids. The lesson then continues with a look at displacement reactions, and what we need to understand by the terms 'oxidation' and 'reduction'. Finally we look at rusting as a practical example of oxidation.
00:32 What is the reactivity series?
01:39 Reactivity of metals with water
04:50 Reactivity of metals with dilute acids
06:25 Displacement reactions
11:00 Oxidation and reduction
In our final lecture we look at chemical tests for cations, anions and gases. The first section explains what we mean by the terms 'cations' and 'anions', with examples of both and lists of the more common ones. Tests for both types of ions are then described with illustrated examples. The last section looks at the tests for the more common gases.
00:30 Cations and anions
01:00 Examples of cations
02:30 Examples of anions
03:36 Common cations
04:30 Common anions
05:45 Tests for cations
11:05 Tests for anions
14:55 Tests for gases
|Quiz 1||20 questions|
In this quick revision quiz you will be asked questions related to the content of the section titled 'Chemistry of the Elements'. Have a go, and see how you get on!
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