This video covers how covalent bonding works, how to show it with dot and cross diagrams, and the types of substances that covalent bonds can form.

Whether we look at the mass, Mr or number of atoms, the mass is always conserved in chemical reactions. However, it may sometimes appear as if the mass changes if some of our reactants or products are gases. We can fix this problem...

This video covers:

- What bond energie
s are
- That bond breaking is en
dothermic
- That bond formation
is exothermic
- How to calc
ulate bond energies
-

Two example calculations r/>
This video
is...

Everything you need to know about ionic bonding!



Ionic bonds form when one atom transfers electron/s to another atom, so that both atoms forms oppositely charged ions. These ions are then attracted to each other by...

This video covers how to find the 'relative formula mass', which is the sum of the relative atomic masses of all the atoms within a molecule or compound. It also covers how to find the the percentage mass of a particular element in a...

Covalent bonds are very strong can be used to make a range of substances from the very small 'Simple Molecular Substances' to the large 'Giant Covalent Structures'. Learn how their properties differ and why!

In this video, you'll learn:<br/>
- The test for detecting c<br/>hlorine gas
- The test fo<br/>r detecting oxygen gas
- Th<br/>e test for detecting hydrogen gas
- The test for detecting carbon dioxide gas

This video covers:

- How to calculate the volume of a gas using the equal: volume = moles
x 24
- How to find the volume of a product when you're told the volume of

a reactant

Exam
board specific info:
AQA -...

Learn all about the properties and trends of the group 7 (halogens) and group 0 (noble gases) elements. Including why halogens become less reactive as you go down the group, and why noble gases are so unreactive. Suitable for: Combined...

What are alkali metals? Why are they so reactive? What are the trends as you go down the group? How do they react with water, oxygen and chlorine? Learn all this and more!

This video covers how atoms gain or lose electrons to form ions, why they bother, and how to tell which ion they'll become. <b<br/>r/>

Based on AQA course, but suitable for all exam boards.

Learn about the 6 Halogens in group 17 with the Halogens Song Periodic Table by KLT.

“The Ozone Layer” will explain what the ozone layer is, how it is being damaged, and how global warming and climate change interact with it.

Upon viewing the Forming Bonds video series, students will be able to do the following: Understand that matter is made up of tiny particles called atoms. Explain that atoms consist of many different types of subatomic particles including...

Learn the basics about how to use dot and cross diagrams to represent covalent bonds. Dot and cross diagrams are simply a straightforward way of drawing the electrons in the orbitals of atoms and compounds. Most of the time, we use dots...

NOTE: animation error at 2:40 - the periodic table is supposed to be twisted clockwise, and not like it is shown in the video. The twisting enables the element Cs to appear on the extreme left and the element F to appear on the right. In...

The video explains how to calculate energy changes in chemical reactions by considering the energy required to break bonds and the energy released when bonds are formed. The video also introduces the concept of bond energy, which is the...

Here we explore the catalytic mechanism of Myeloperoxidase and subsequent formation of Hypochlorous Acid and Hypothiocyanite, two reactive oxidative species (ROS). We will also see functions of Hypochlorous Acid.<br/>

An overview of the different types of gas used during WW1 together with the developments of gas masks and hoods to protect soldiers.

Ever wondered how to conduct a chemical test for the presence of colourless and odourless gases? Watch this to find out how!

It talks about preparation, properties & structure of HCl, oxoacids of halogens & interhalogen compounds. It gives introduction of group 18 elements & their occurrence.

This video demonstrates how to blend powdered coal and coke certified reference materials. It is intended to be used in conjunction with NIST Special Publication SP 260-167 available at href='http://ts.nist.gov/MeasurementService...'...

In this video you'll learn the basics about Ionic Bonds.

Learn the basics about the law of constant composition and how to apply it.



The law of constant composition states that in a given chemical compound, all samples are made up of the same elements combined in the same...