Topic 2 Simple Molecular Substances *****

Question 1

What are simple molecular supbstances

Answer 1

Are made up of molecules containing a few atoms joined together by covalent bonds

Question 2

Symbol equation for ammonia

Answer 2

NH3

Question 3

Properties of simple molecular substances

Answer 3

The atoms within molecules are held together by very string covalent bonds
Forces between the molecules are very weak
Very low melting pint because the covalent bind doesnt need to break you only need to break the Inter molecular forces -easily pulled apart
Most molecular substances are gases or liquids at room temperature
As molecule gets bigger more energy is needed to break them and melting and boiling points increase
Molecular compounds don’t conduct electricity because thy aren’t charged and have no free electrons or ions

Question 4

What do structures do covalent binds usually have

Answer 4

Simple molecular structures