Covalent bonding and molecules

Question 1

What is covalent bonding ?

Answer 1

a chemical bond formed when two atoms share electrons, typically non-metal atoms, to achieve a stable electron configuration, like a noble gas.

Question 2

What is the symbol for Hydroxide, Sulfate, Nitrate and Carbonate ?

Answer 2

OH-, SO4-, NO3-, CO3-

Question 3

What type of attraction would this type of bond have ?

Answer 3

Electrostatic Attraction.

Question 4

What are the two ways to solve and work out this type of bond ?

Answer 4

Dot and Cross diagrams
Writing the symbols

Question 5

What are molecules ?

Answer 5

There are groups mixed atoms covalently bonded together.

Question 6

What is the structure of the bond for methane ?

Answer 6

H H
C
H H

Question 7

Do covalent molecules have different or the same low melting and boiling points ?
Can they be gases liquids solids or all of them ?

Answer 7

Different
All of them

Question 8

The melting and boiling points of the molecules where would they be?
strong and weak

Answer 8

Strong - Inside the molecule
Weak - between and depend on the melt and boil point when they break.
Strong inter…- Inside the molecules remains unchanged
Weak inter…- between the molecules

Question 9

Can molecules conduct electricity if so why?

Answer 9

No, this is because there are no free electrons or ions to carry a charge.