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.
- 11:26 “Now what's the physical property of hydrogen? At standard temperature and pressure of hydrogen is a non-toxic, non-metallic, odorless, tasteless, colorless and highly combustible, diatomic gas, with the molecular formula...”
- 10:34 “more. Hydrogen is denoted with H. It's also a colorless, odorless, tasteless and flammable geyser substance that is in the simplest member of the family of chemical elements. So hydrogen is also odorless, it is tasteless...”
- 12:14 “Hydrogen gas is highly flammable, that is, it can burn and will burn in air at a very wide range of concentration between 4% to 75% by volume. Hydrogen does form compounds with most elements, despite its stability. Despi...”
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.
- 12:26 “Which actually has the ability to oxidize itself. So, basically, as a ability to oxidize to cover four oxide in the presence of compounds like metallic oxides, basically. And steam and iodide also, okay? Or iodine oxide....”
- 03:56 “True red hotel carbon, okay? So, for the dehydration, basically, what happens if I've explained this already into you? What happens here, basically, is, for it to actually be passed through a dehydrated agent. So, the de...”
- 13:12 “Then, also, you have iodine five oxides be reduced to iodine, all right? So, as you can see, this equation here is showing that. Then, basically, uses of CO2 oxide. So, we have uses of CO2. So, CO2 oxide can be used as f...”
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
- 09:56 “with carbon falls out of the atmosphere. So for this one, which is also carbonic acid, a weak acid. Why this one also reacts with water? So give you H2 SO3. So still we have SO3 also, which is an hydride, can still react...”
- 09:07 “All OZI of no Metas are referred to as what? As a hydride. For example, we have CO2. This is a hydride, SO2, a hydride and when they dissolve in water. These are acidic OZI. Acid because they will tone blue, it won't sep...”
- 08:13 “form Acalis. Water Acalis. Acalis are soluble hydroxide. So firstly for potassium. When potassium reacts with oxygen gas of the air that's thin. It gives you potassium OZI which is basic OZI. Basically because this react...”
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
- 16:27 “And on the product side, I actually have 4. I have 6 times 2, 6 times 2, hydrogen. And that's what we give me 12. You can see it's balanced. The last but not the least, which is oxygen 502. 5O2 means 5 times 2. 5 times 2...”
- 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...”
- 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...”