QUESTION 5 a(i) Explain what is meant by the term cova…

QUESTION 5 а(i) Explаin whаt is meant by the term cоvalent bоnding. (2) a(ii) Draw a dоt and cross diagram to show the bonding in a molecule of ethene, C2H6   Show only the outer electrons. (2) b Substances A and B are covalently bonded and have simple molecular structures.   The table below gives the boiling points for substances A and B.   Substance Boiling point in