Water and Its Properties
This lesson covers the composition of water, including its chemical formula H2O. It explains the physical properties of water, such as its states (solid, liquid, gas), boiling and melting points, and its ability to dissolve various substances. The lesson also discusses the importance of water in liv
- 00:10 “Good day, everyone! My name is Mr. Ife and I'm your basic science instructor. Our lesson today is "Says, Water, and Rustam". A quick round through the objectives. At the end of the class, students should be able to expla...”
- 13:51 “When you use your hand to touch the ion, the roast flick is that particle that comes out. So, it falls off the ion and exposes the new ion. Which can then also begin to roast. So, the ion has stages. So, once the first p...”
- 12:19 “You must have seen your geats or some ions that have undergone some chemical reaction. If you look at the picture, you will notice that this picture has undergone the process of roasting. The initial color of the ions ha...”
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
- 13:57 “And now you balance hydrogen. Check the atom count. You have 3 hydrogen A, you have 2 hydrogen A. The best I can balance this is, I put 2 A. Like I told you, you don't balance down. You don't balance by the soft grit. Yo...”
- 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...”
- 13:06 “you don't say N2, it should be ordinary, it will be ordinary key, it will be ordinary sodium, which is N8. And then in simple chemical reactions, radicals would be main words. On change, radicals, it's main, on change. I...”