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
- 00:49 “the knowledge of chemistry, to make chemicals from chemicals called raw materials. What are raw materials? These are the starting materials used for the production of all the useful materials. The basic raw materials we...”
- 03:59 “because a particular raw materials can be used to make different products. The first we are going to look at is air. As you likely know, that air is a mixture of gases. Over the major components are oxygen and nitrogen....”
- 08:42 “explosives, synthetic fibers, and accumulator industries. If our raw material is metallic oils, metallic oils from iron, various products can be getting from iron. These products can be gotten from aluminum and even copp...”
Types of Production
This lesson defines production and explains its types, including primary, secondary, and tertiary production. It also discusses the extraction of raw materials and the transformation into finished goods.
- 12:36 “abnormal raw material to be converted to finished product, okay? Production makes it possible for those raw materials to be able to get to that position where one can be able to use them. It brings opportunities to custo...”
- 03:28 “We are going to look at them one after the order. The first one is primary production. This is the early stage of production that involves the extraction of raw materials from the soil, not just soil from the sea, beneat...”
- 06:42 “Extractive is under primary production. Why manufacturing and construction is under secondary world production? Let us look at extractive production or the extractive industry as we call it. This is the primal sector. It...”
Factors of Production
The lesson covers the concept of production and its types. It explains the factors of production, division of labor, and specialization. The advantages and disadvantages of division of labor and large scale production are also discussed.
- 02:25 “to consume it, your biscuits is the consumer goods, your notebook is the consumer goods, your uniform, your sandals, those are consumer goods. The moment you pick them up you can use them. Capital goods are those goods t...”
- 04:04 “goods. That is the secondary production. So the extractive industries provide the raw materials with which secondary production is carried out. Now we said the primary production industries are referred to as the extract...”
- 03:16 “this level of production that's primary production are commonly referred to as the extractive industries because their work is extraction. So they are getting the minerals out of the ground. They are getting the food out...”
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.
- 15:32 “electroplating can be done easily. So for manufacturing, light pencils and stove paints, as you can see, there is just a picture showing, you know, an example of that, okay? In particular graphite type, you can use for m...”
- 21:57 “To antracite, for example, is used for preparing graphite for the manufacture of citratical petrol by catalytic adrogenation of co-que, so that is how antracite co-que can be obtained, all right? So, now, for the wood, y...”
- 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...”
Solid Minerals in Nigeria
This lesson covers the types of solid minerals found in Nigeria and their locations. It also discusses the importance and uses of these minerals, along with how to draw a map showing their distribution across the country.
- 04:13 “Number three, it is used in the manufacture of sodium chiosocarbonytes for and the formula is written as e2 cu. So this is very important in the manufacturing of soup. So sodium chiosocarbonytes for is important in manuf...”
- 06:46 “in a wooden state. Along the Nigerian coast, you can see it in the sea waters. You can also find it in benign state. Now what is the importance of salt? Number one, it serves as dietary purpose. Number two, dietary purpo...”
- 01:37 “minerals of a particular metal from which it can be profitable mind is called the ore of that metal, e.g. iron ore, copper ore, etc. Solid minerals. Solid minerals have been found deposited in some parts of Nigeria and i...”
Solid Minerals in Nigeria
This lesson covers the types of solid minerals found in Nigeria, their locations, and their uses. Students will learn about specific minerals such as limestone and their importance to the economy. A map of Nigeria showing the distribution of these minerals will also be drawn.
- 09:18 “You can be used for preserving food. You want to preserve your fish or your meat for a long period. Then add the salt to it, and it saves it from microorganisms that will make its perish. No. 3. It is used in the manufac...”
- 12:33 “Solid minerals cannot be used in the form in which they are found when dug out of the soil. When solid minerals are dug out of the soil, you cannot just use them like that. They need to undergo some process. They have to...”
- 15:03 “the vegetation is going to kill some of the plants, it's going to be responsible for some of the animal behavioural pattern. Crystallistic of solid minerals. Diamonds. Diamonds is hard with natural state and it is a lot...”
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
- 13:08 “High in the electrochemical series, like I told you earlier, are highly electrovalent compounds, which are very stable and difficult to reduce chemically. So the process of extraction is about reduction. Remember, these...”
- 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...”
- 16:23 “is CC, we have CC electron. So give you, you can always remember that oxygen is the atomic. Meaning the oxygen is the gas. All gases are the atomic. They can assist as an atom except as a molecule. So writing it this way...”
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.
- 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...”
- 27:17 “preparing them in the laboratory, how we can prepare this in the laboratory. Well, basically, for the soluble transocarbonyl, or soluble ones, or soluble salt, so like the transocarbonyl now, salt, so the water, the solu...”
- 31:22 “in this example here, all right, so then, now, the other aspect of the compounds of carbon, so the cohydrogen transocarbonyl salts, now, these are actually acidic salts, we know that for acidic salt, like we explained pr...”
Separation Techniques for Mixtures
The lesson covers various methods of separating mixtures, including filtration, evaporation, decantation, and chromatography. Each technique is explained along with its applications in obtaining pure substances from mixtures.
- 03:58 “If it can be decomposed, if it can be decomposed by it, then you won't apply this method. Probably such as sugar let's 2,000 nitrate, 5, and ion 2/3 of the sea will decompose on it. So they can be used, they can be used...”
- 24:58 “The next soft topic is what are pure softness, what are in pure softness, and in pure softness is the initial of pure softness and impurity. And in pure softness is the initial level of pure softness and impurity, is the...”
- 17:44 “then a solubil compound also of sodium-thousen nitrate-5. You can see the state here, acous, acous, this is solid, and this is another acous solution. Solid tells you that it does the precipitate, I imagine missing two s...”
Properties of Oxygen and Hydrogen
This lesson covers the properties, preparation, and tests of oxygen and hydrogen gases. It explains the role of these gases in the environment and their reactions with other elements. The lesson also includes information on the physical states of oxygen.
- 16:16 “This mix together, you get the salt and hydrogen gas, which becomes zinc chloride and hydrogen. When this is decomposed, you get zinc chloride and you also get hydrogen. And as a result, hydrogen is being stored in this...”
- 08:52 “You can prepare oxygen by decomposing of hydrogen peroxide. When you have hydrogen peroxide, if you want to decompose it, breaking it into two is a chemical process, but decomposing it will give you water and oxygen. Fro...”
- 07:20 “If you have seen the welders, when they begin to weld, the fire that comes out is as a result of this. It is used in the large-scale production of sintences gases. It is also used for artificial respiration in oxpitu. An...”
Sources of Energy
The lesson covers different sources of energy, including renewable and non-renewable types. It explains how energy is used in society and discusses the environmental impacts of various energy sources. Specific examples include petroleum, natural gas, solar energy, and wind energy.
- 08:36 “on what are surrounding the Earth. Okay, we have the bio-man energy. Like I said before, as I said, these are the energy that is getting from either from poultry, from animal escrets from inorganic substances. These are...”
- 03:09 “and we are using firewood, we are using different things. These are part of energy. We have TDAW and ocean energy. Where we get to the B use that word. There are a lot of energy which we don't know about. These are those...”
- 10:58 “These are the energies that can never be replaced. After they are being used, they can never be replaced again. Now, we have, for example, as nuclear energy, when this one is being replaced in the environment, it can nev...”
Meaning and Types of Trade
The lesson explains the concept of trade as the buying and selling of goods. It describes the types of trade, including own trade and foreign trade, and outlines the services that facilitate trade. The role of Customs and Excise in foreign trade is also discussed.
- 05:29 “And also, school shoes. There are some very good letters in Italy. So an Italian man can decide to produce good shoes, good school shoes. We used to remember this company called Batta. They bring shoes from abroad to Nig...”
- 06:20 “It is easier to get raw materials from Lagos to all your states, maximum two hours, but they are limited boundaries to selling these same raw materials from Lagos to London for example. You have to consider customs. You...”
- 01:36 “Also within an economy, it is among producers and consumers. So consumer is the final buyer. The producer of the product, it could be T. It could be even the BORVITA, the producer as giving us BORVITA in the markets. Wha...”