quiz 7

Question 1

Give 2 properties of ionic substances

Answer 1

High melting and boiling points
only conduct electricity when molten or in solution

Question 2

Describe the structure of a giant ionic lattice

Answer 2

A 3D network of alternating positive and negative ions held together by electrostatic forces of attraction

Question 3

Explain why ionic substances do not conduct electricty when solid

Answer 3

Because ions are not free to move,so charges cant flow

Question 4

Name the type of structure that is formed when metals and non-metals react together

Answer 4

Giant ionic structure

Question 5

Explain why ionic substances conduct electricity when molten

Answer 5

Because the ions are free to move and carry charge

Question 6

Define molten

Answer 6

melted

Question 7

Explain why ionic substances have high melting points

Answer 7

There is a strong electrostatic force of attraction
between oppositely charged ions
which requires a lot of energy to break

Question 8

Explain why ionic substances conduct electricity in solution

Answer 8

because the ions are free to move and carry charge