(b) Covalent compounds such as hydrogen sulfide have low melting points and do not conduct electricity when motten Draw one line from each property to the explanation of the property. Property Low melling point Does not conduct electricity when molten of property Explanation Electrons are free to move There are no charged particles free to move lons are free to move Weak intermolecular forces of attraction Bonds are weak Bonds are strong

## Step1: Identify the properties we're being asked about. Those properties are "low melting points" and "do not conduct electricity when molten". ## Step2:Covalent compounds, such as hydrogen sulfide, are formed when two nonmetals share electrons. Covalent compounds generally have low melting and boiling points because the energy required to break their bonds is relatively less. This is due to the strength of the bonds formed being generally weaker, which reflects in weaker intermolecular forces of attraction.### ## Step 3: They usually don’t conduct electricity because they do not form ions and thus do not have free moving charged particles that enable the conduction of electricity. This property of not being able to conduct electricity when molten also applies to them. ###