Over a million students use our free study notes to help them with their homework
Firstly, we write down all the information we are given from the question into mathematical form.
This equation is 4a-b=38 The valu...
A giant metallic lattice – the crystal lattice of metals consists of regularly arranged ions (NOT atoms) surrounded by a ' delocalised sea of electrons' that form the giant lattice.
The...
Covalent compounds contain atoms that share electrons - for example, hydrogen chloride (HCl) share electrons (one from each atom), in order to achieve a full set of 8 electrons in their outer ...
A covalent bond is formed due to a shared pair of electrons between to atoms. It occurs between two non-metal atoms eg) HClAn ionic bond is formed when there is a strong electrostatic attraction between o...
A reaction in which a substance is broken down into 2 or more substances by heat. An example is the breakdown of calcium carbonate into carbon dioxide and calcium oxide.
...
←
178
179
180
181
182
→
Internet Safety
Payment Security
Cyber
Essentials