Over a million students use our free study notes to help them with their homework
An ionic bond is generally between a metal and a non metal atom. It is based on electrostatic attractions of two ions formed from an atoms loss or gain of electrons. A metal e.g. Li will donate one or mor...
Calcium chloride in an ionic compound. The calcium atom loses two electrons, and each chlorine atom gains one electron, to form a full outer shell of electrons. The electrostatic force of attraction betwe...
Example of an alkane is CH4 methane
The main difference between alkane and alkene is the saturation of the carbon-carbon bond. In alkane is unsaturated and has a C-...
Metals are the largest category of elements and they are characterized by their appearance: usually they possess a silvery shine, they are solid (except for mercury), they are malleable and they conduct e...
Rate of reaction is determined by the number of successful collisions between the reactants per second. A collision is successful if two particles collide with enough energy to react. This can be affected...
←
145
146
147
148
149
→
Internet Safety
Payment Security
Cyber
Essentials
