In this video we look at the basics of algebra, focusing on the notation that is used. In algebra we use symbols to represent numbers. These symbols are called variables. Some reasons for using symbols instead of numbers is that the symbols, or variables, can represent unknown quantities and for s
Applying the energy levels all the time takes far too long. Therefore, a simple shorthand notation of the electron configuration was developed. 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
Skeletal structure - representation of organic compounds simply explained - substances and particles - organic chemistry. The skeletal structure represents organic compounds more clearly, simply and faster. In this context, important basic terms are line-angle formula or structural formula and valen
In this video we are going to look at how to do calculations with standard form. When adding and subtracting numbers in standard form, we need to write the numbers out into ordinary numbers, do the sum and then turn the answer back into standard form. With multiplication and division we can work
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.
A power is also known as an index number, or indices for plural. They tell us how often a number or letter has been multiplied by itself. In this video we are going to look at index notation, so that we are ready to cover the laws of indices in future videos. Our teachers and animators come toget
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
