Pupil outcome: I can use chemical symbols to write down chemical formulae for elements and compounds. Key learning points: - The symbols for each element (each type of atom) a substance contains, appear in its chemical formula. - Numbers...

A chemical formula is a way of writing the composition of a compound.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

Chemical equation shows the overall chemical change of reactants into products. It's a bit like a detailed cooking recipe, but where all the ingredients and all the products are written down, even the ones you can't necessarily see. The...

This lesson will present the rules for writing the names and chemical formulae of elements and their allotropes.

Definitions included: chemical structure, ionic lattice, metallic lattice, molecule, covalent network, solitary atom,...

This lesson will discuss the rules for writing the names and chemical formulae of covalent molecules and covalent networks. Definitions included: compound, ionic compound, covalent compound, covalent bond, electronegativity, molecular...

This lesson will introduce the rules for writing the names and chemical formulae of non-metal anions and metal cations, including metals with multiple positive oxidation states.

Definitions included: compound, cation, anion, IUPAC,...

This lesson will reveal the rules for writing the names and chemical formulae of ionic compounds, by balancing charges and using the cross method.<br/>
Definitions included: ionic compound, binary ionic compound, oxidation state

This lesson will uncover the rules for writing the names and chemical formulae of polyatomic ions and ionic compounds.<br/>
Definitions included: monoatomic ion, polyatomic ion

This lesson will explain the differences between hydrated and anhydrous salts, including how to write their names and chemical formulae.<br/>
Definitions included: hydrated salt, water of crystallisation, anhydrous, anhydrate, aqueous salt

This program covers the very important topic of ionic compounds. We discuss how ionic compounds form and how to predict ahead of time what the chemical formula will be when given the atoms that form the ionic compound. We spend a great...

This video is an educational presentation on how to form compounds through understanding the charges on various ions. The viewer learns about the formation of positive and negative ions in metals and non-metals, how to predict the charge...

Here, I show you how to write the formula for an ionic compound given the cation and anion. [5 examples]

In this video Paul Andersen explains how chemical analysis is important in determining the composition, purity and empirical formula of a compound. An empirical formula determination problem is also included.

Chemical equation shows the overall chemical change of reactants into products. It's a bit like a detailed cooking recipe, but where all the ingredients and all the products are written down, even the ones you can't necessarily see. The...

Mr. Andersen shows you how write the chemical formula for chemical names.

The molecular formula is the actual formula of a compound and can be found by comparing the mass of the molecular formula to the mass of the empirical formula to figure out how much bigger the molecular formula is compared to the...

Organic chemistry is pretty much everywhere! In this episode of Crash Course Organic Chemistry, we’re talking about the amazing diversity among organic molecules. We’ll learn about the origins of organic chemistry, how to write Lewis...

There are a number of substances that are vital to all living organisms. In this lecture, I talk about substances like carbohydrates, lipids, proteins and nucleic acids, going into some detail about their structures and importance.