Define the term Covalent Bond

A covalent bond is formed by a shared pair of electrons between two atoms.

RO

Related Chemistry A Level answers

All answers ▸

Draw an example using a diagram of Carbon, three "Y" substrates and an "L" indicating any leaving group the Sn1 nucleophilic substitution reaction. (3 marks) Which step is fastest (1 mark).


How do you calculate the pH of a weak acid?


Lead (IV) oxide reacts with concentrated hydrochloric acid as follows: PbO2(s) + 4HCl(aq) -----> PbCl2(s) + Cl2(g) + 2H2O(l) What mass of lead chloride would be obtained from 37.2g of PbO2, and what mass of chlorine gas would be produced


Describe the structure of benzene with reference to delocalisation and an analysis of the Kekule structure.