Definition and Classification of Chemicals
This lesson defines chemicals and explains their various forms, including solids, liquids, and gases. It also classifies chemicals their hazardous nature and discusses safety measures when using them.
- 22:49 “We have the refrigerants which is used as your refrigerating coolants. We have the drugs and of course your fuel or petrol. The second one are the moderately hazardous chemicals. These particular ones are not two hazardo...”
- 21:57 “hazardous chemicals are those ones that are both toxic and reactive because there are some chemicals that are toxic but not reactive and there are some which are reactive but not very toxic. Now, the ability for a chemic...”
- 27:44 “you use a film that is ideal so that you don't come to a working environment and what's the perfume you are wearing on your body reacts with the hazardous chemical which may be volatile. Also, make sure that your hand is...”
Chemical Industries Overview
This lesson covers the definition of chemical industries and the raw materials used in their production. It explains the classification of chemical industries into heavy and fine chemicals, along with examples of each type. The lesson also discusses the importance of these industries to individuals
- 11:49 “in chemical industry, there is need for you to be evaluated. And the first question I would like to ask you is differentiate between the two types of chemicals. I believe you can answer that by now. And I mentioned any t...”
- 01:39 “I believe you are just getting that now. Welcome to chemical industry and food. What are the classes of chemical industry? Basically, chemical industries can be grouped into two, heavy chemicals and fine chemicals. What...”
- 06:22 “will be plastics, explosives, dyes, coagas, ammonia, and so on. And the chemical industries that produce all these are the plastic industries, the dyes, and explosives industries. If our raw material is calcium-throwed c...”
Careers and Applications in Chemistry
This lesson covers various career paths available for students studying chemistry, including roles in education, engineering, and health services. It also explains the applications of chemistry in food production, medicine, military, and environmental science.
- 03:54 “The next is clothing. The clothes you wear are tester industries, mixtures of the knowledge of chemistry. There is nothing that has a good aspect, has a good part without having a bad part. What I was talking about next...”
- 04:42 “and even in time pass. We talk about additive drugs like cocaine, heroin, and more things. These are products of chemistry also. The next we look at is corrosion, corrosion of materials are like roasting of iron. By vers...”
- 01:34 “compared to non-evalupling environmentally friendly product. The next is forensic chemistry. You can see these people in the aspect of crime. The enabled also investigate crime very well. The next aspect, very important,...”
Oxides of Carbon
This lesson covers the two types of carbon oxides: carbon monoxide and carbon dioxide. It explains their formation, characteristics, and methods of preparation in the laboratory. The lesson also defines the term allotrope and discusses the economic importance of these oxides.
- 10:07 “of the pericabal two oxides. So, now, let's now look at the properties of carbon two oxides, basically, for the problem of carbon two oxides, it's colorless, of course, you know that, all right? Almost the colorless, mos...”
- 33:48 “so for example this is actually used by a manufacturer of glass, so you know, add detergents, okay, so then for this one is deployed in baking powder, or to discharge our carbon-folks, right, so as that helps to reduce t...”
- 10:52 “So, now, the air containing even less than 1% of carbon monosa, okay, can be fatal. Very, in fact, just 1% of it can be very dangerous of it, okay? When you breathe in, for about 10 to 15 minutes, the person can eventual...”
Carbon and its Allotropes
The lesson covers the characteristics of carbon as an element and its various forms, known as allotropes. It explains the presence of carbon in nature, its compounds, and the two types of carbon oxides. The importance of carbon in living systems and its economic significance is also discussed.
- 20:20 “is used for the manufacture of pharmaceutical products and also as a solvent, okay? So for co-ta, co-ta is a mixture of more than 200 different substances, which can be separated by a fraction of distillation, so of cour...”
- 10:51 “Bolly point, very high melting point, as I said that. Okay, now look at uses of damod. Now, the unusual brilliant shine, all right? Of damod makes it an invaluable precious of stone. In jewelry, making jewelry, all the j...”
- 22:46 “will have a polyethnose acid or wood gas, actually, so then for the polyethnose acid, which is a liquid fraction of co-tax million etanote acids, all right? Which contain propanone, which contain metanone, and also some...”
Metals and their compounds
This lesson covers the characteristics of metals, including their ability to lose electrons and form positive ions. It discusses the classification of metals, their physical properties, and examples of common metals such as sodium, magnesium, and aluminum. The lesson also includes information on the
- 00:00 “Hello everyone. I'm Mrs. Olabimpe Ayoko. I'm here to teach SS 3 chemistry and the topic is Metals and its compounds. So at the end of this lesson, everybody is expected to be able to define Metals with examples. The frie...”
- 12:16 “allow that they are good electrolytes because you can use them for electrolysis. Whereas chlorides of nonmetas are non electrolytes. They cannot be broken down. Remember, it's the ions that conduct electricity. So covale...”
- 11:30 “After you earlier, the reaction of hydrogen with metas or nonmetas is known as hydrace. So when hydrace with nonmeta, they form covalent compounds. Examples are ammonia. We have methane stage 4. We have hydrogen chloride...”