The formulas of the salts represent ratio formulas. It describes the ratio of cations to anions. Here it is explained how to arrive at these ratios and how salt formulas can be established as a result. The naming is more of a minor matter here. Original: "Wolfgang Dukorn" Original: German. All tra
The valence stroke formulas, or Lewis formulas, are explained and practiced with some examples. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Ha two O! This is the spoken formula of water. What does this mean and how can it be applied to other molecules? This screencast is about the formula notation of molecules. It is not a question of why the molecules in question are built the way they are. Original: "Wolfgang Dukorn" Original: Germa
We can derive expressions and equations from sentences, and also we can derive formulae such as area and volumes, or quadratics. In this video, we're going to look at deriving formulae. You are usually given information in a diagram or sentences and asked to "show that". Ignore the "show that" as th
Sodium reacts with chlorine to form a white salt, sodium chloride. An ionic bond of cations and anions is formed. It is explained how the PSE helps to determine the charges of the ions and to establish the ratio formula from them. Original: "Wolfgang Dukorn" Original: German. All translations in t
Expressions, equations, formulae and identities are all slightly different types of algebraic notation. In this video we’re going to discover the differences. An expression is a collection of letters and numbers, with no equals sign. An equation is two expressions that equal each other, and so can b
Lewis formulas describe the connections of atoms within a molecule. This screencast describes how these formulas can be determined when different types of atoms are involved. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
How are Lewis formulas (valence formulas) set up? The electron octet (duplet for hydrogen) and the total number of electrons must be observed! Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
If salts are dissolved in water, they can form an acidic, neutral or alkaline environment. The formation of oxonium ions or hydroxide ions is explained. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
A reaction equation with molecules and salts (possibly also with metals) together is very demanding for the initial lessons. How to proceed and also how to comply with the law of conservation of mass follows in this screencast. Original: "Wolfgang Dukorn" Original: German. All translations in this
In this video we are going to look at how to change the subject of a formula, when the subject appears twice. We have already looked at how to change the subject in another video, so you may want to watch that first. We always use opposites: adding and subtracting, multiplying and dividing, squaring
Click here to see more videos: https://alugha.com/FuseSchool Quadratics can be solved in different ways: factorising, quadratic formula, or by completing the square. In this video, we are going to look at how to use the quadratic formula to solve quadratics. Quadratics can’t always be factorised. H
