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...”
- 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...”
- 18:43 “with the Ozzides. Ozzides ion to release the electrons necessary for reduction of the matter. What am I talking about? So carbon of the A, carbon that reacts with the oxygen gives us CO which is carbon two or that plus t...”
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.
- 09:39 “the 17th element. You see the 35th element, which is bromine, the M502, which is the iodine, and some other elements. The only two that are no arranged vertically are your lanterites and your actinites. Now, what are com...”
- 08:53 “We have the non-metals. We have the halogens. The halogens are referred to as your group 7 elements. That's where you have your chlorine, your fluorine, your bromine, and some other substances. We have the alkali-ed meta...”
- 19:34 “is used in hospitals for detecting the sex of a baby. Now, we have agrochemicals. Agrochemicals, as the name implies, are those used for agricultural purposes. We have the fertilizers, the organic manuals. We have the pe...”
Chemical Symbols and Formulae
The lesson covers the symbols of the first 20 elements and how to write chemical formulae and equations. It explains the differences between elements, compounds, and mixtures, as well as the concept of radicals and valency. The laws of conservation of mass and constant composition are also discussed
- 00:46 “sulfur, we use the phase letter S and some other examples like that. Combination of the phase, the next is, convolution of the phase letter, written in capital and one other letter from the name of the element, written i...”
- 01:34 “the symbols of the different elements that combine chemical to form the compound, E, G, calcium carbonate, or calcium triadal carbonate for. Whereby, it contains carbon and it contains calcium, one atom of calcium carbon...”
- 17:18 “ion 3 chloride. The next KOH plus CO2 to give us K2 CO3 plus H2O. And then the next is C6 H2FO6 plus O2 to give us CO2 plus H2O. And the last is KCLO3 to give us KCL plus O2. All the equations are no balance. You need to...”
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.
- 35:26 “so you'll find out that for me, they then also measure three metals, basically that are very soluble in water, in the form of the hydro-t transocarbonyl. Thanks for watching, my name is Charles Christopher, till next tim...”
- 28:54 “So, this one is a compound of carbon, because carbon is actually found there as an element there, all right? This is actually M2, M2 here, I show you that, okay, if I put this N here, if I put this N here, you have N2 CO...”
- 00:02 “Good day, everyone. My name is Charles Christopher. I'm the chemistry teacher, and I'll be taking you on the topic, all sides of carbon. Now, before I begin, I would like to give you some of the objectives of the class....”
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.
- 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...”
- 00:02 “Good day, everyone. My name is Charles Christopher, I'm the chemistry tutor, and I'll be taking you on the topic carbon and its compounds. Now, before we begin, I would like to give you some of the objectives of the less...”
- 00:48 “of wood and coal, then transoccarbonate and hydrogen transoccarbonate as the last one. All right, now introduction. Basically, this is one of the very vital topics we have in chemistry. So I believe that the classes is r...”
Changes of Matter and Atomic Structure
The lesson covers the differences between physical and chemical changes in matter. It explains the concepts of atoms and molecules, their arrangements, and introduces atomic number, mass number, and isotopes. The lesson also includes calculations of relative atomic masses.
- 02:25 “Examples of molecules are nitrogen, oxygen, molecule, chloride, sodium, chloride, calcium, chloride. Sodium channels are naturally 5, and the likes of them. The number of atoms in the molecule of element is called atomic...”
- 13:03 “Finally, our molecular formula will simply be C times this 2, H times water times 2, 4, n, o, 2. I believe you understand that, and you can see that from here. The molecular formula is CH2, H4, o2, if you arrange it, you...”
- 08:12 “the relative molecular mass of the compound. It actually gave us the actual number of moles of atoms of each element in one mole of the compound, as we are going to see with a particular example. The compound was found b...”
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...”
- 06:28 “Oxygen also combines with elements at room temperature, for example, the formation of rust. And water falls on iron, and it's exposed to oxygen. That iron begins to undergo chemical reaction, and it is called roasting. D...”
- 02:23 “Oxygen forms compounds by reacting with practically any other element. So oxygen can be had with hydrogen and it is going to give you water. So oxygen can react with any element. So oxygen in its normal state from the pi...”
Solution and Solubility
This lesson covers the concepts of solution, solute, and solvent. It defines solubility and explains different types of solutions, including saturated, unsaturated, and super saturated solutions. Factors affecting solubility and calculations related to solubility are also discussed.
- 22:14 “and highly soluble in benzene, why because the chemical make up of benzene and I mean naphthalene and benzene are the same, so that is why they can easily dissolve in it, now solubility chart, of course, the solubility c...”
- 23:51 “that is you have calcium carbonate, for example, calcium carbonate and water is insoluble, techno of that, that is I here, you are seeing here, okay, so now the chart actually helps you to explain the effect of solubilit...”
- 03:08 “Then you have a gas dissolving the liquid, an example of that is a carbon dioxide in soda. Then a gas in solid, a very good example of that is a hydrochloric gas in palladium metal, all right? Then another type or catego...”