This report on Door Lock & Lockset Manufacturing: 1  Provides Market Size information to assist with planning and strategic decisions. 2  Includes the necessary information to perform SWOT, PEST and STEER analysis. 3  Helps you understand market dynamics to give you a deeper understanding of industry competition and the supply chain.
Your first step should be to analyse the compound. For example, if the compound is carbon, you know it always has a valence of four, so, if it has a formula C2H4 (ethylene) it obviously has a double bond. There are difficulties here because benzene C6H6 can be considered to have 6 1.5 C-C bonds, being aromatic.
The Three Covalent Bonds. Single bonds are a type of covalent bond formed from the sharing of two electrons between two atoms, one electron from each atom. Now this is quite different from double bonds. Double bonds are a type of covalent bond where four electrons are shared between two atoms.