CHAPTER 6 CHEMISTRY REGENTS QUESTIONS

if a bond is polar its electronegativity has

the biggest difference

if a bond is non polar its electronegativity has

the lowest difference

polar =

asymmetrical

non polar =

symmetrical

Ionic bonding is between

metal and nonmetal atom

breaking

absorbs

creating

releases

what describes a multiple covalent bond ?

four electrons are shared

share

covalent

ionic

transferred

As a bond between a hydrogen atom and a sulfur atom is formed, electrons are

shared to form a covalent bond

What type of bonding is present when valence electrons move within the sample ?

metallic

The bonds between the hydrogen and oxygen atoms in a water molecule are

polar covalent

what is an excellent conductor of electricity

metal - valence electrons are mobile

What occurs when potassium reacts with chlorine to form potassium chloride ?

electrons are transferred and the bonding is ionic

the malleability of gold is due to the

nature of the bonds between gold atoms

A solid sample of a compound and a liquid sample of the same compound are each tested for electrical conductivity. Which test indicates that the compound is ionic ?

the solid is a poor conductor, and the liquid is a good conductor

A sample of a substance with these characteristics:
- melting point of 984 K
- hard, brittle, solid at room temperature
- poor conductor as a solid
- good conductor as a liquid


This sample is classified as an

ionic sample

which type of substance cab conduct electricity in the liquid phase but not in the solid phase ?

ionic compound

which element is composed of molecules that each contain a multiple covalent bond ?

nitrogen

Which type of bonding is found in all molecular substances ?

covalent bonding

What is a property of a molecular substance

low melting point

the bonds in all network solids are

covalent

water molecules =

hydrogen bonding

molecular bond =

covalent

polar =

electronegativity difference between 0.4 and 2.0

non polar =

less than 0.4