retrival

Question 1

describe and explain the conductivity of a simple covalent substance

Answer 1

does not conduct because their are no delocalized electrons to carry the charge through the structure

Question 2

describe and explain the conductivity of a giant covalent substance

Answer 2

does not conduct because their are no charged particles to carry the charge

Question 3

describe and explain the conductivity of a giant metallic substance

Answer 3

conducts because the delocalized electrons can move and carry the charge

Question 4

describe and explain the conductivity of a giant ionic substance

Answer 4

does not conduct unless molten or acquis (dissolved in solution) because the electrons cannot move

Question 5

describe and explain the melting/boiling point of a giant metallic substance

Answer 5

high because it requires a lot of energy to break the electrostatic forces

Question 6

describe and explain the melting/boiling point of a simple covalent substance

Answer 6

low because it does not require much energy to break the weak intermolecular forces

Question 7

describe and explain the melting/boiling point of a giant covalent substance

Answer 7

high because large amounts of energy are needed to overcome their strong covalent bonds

Question 8

describe and explain the melting/boiling point of a giant ionic substance

Answer 8

It takes a lot of energy to overcome the strong electrostatic forces of attraction between oppositely charged ions, so ionic compounds have high melting and boiling points.

Question 9

if a substance is bellow its melting point, then it is a _____. if it is in between its melting and oiling point, it is a ______. if it is above its boiling point, it is a ___.

Answer 9

solid, liquid, gas