Question

question 8
what is used to represent a bond in a covalent compound?
o arrows
brackets
arrows
lines
question 9
how many electrons are in a single bond?
6
4
2
3

Explanation:

• In chemistry, for question 8, lines are used to represent bonds in covalent compounds. For example, in the Lewis structure of \(H_2O\), \(H - O - H\), the lines (\(-\)) represent the covalent bonds.
• For question 9, a single covalent bond is formed by the sharing of two electrons (one from each atom involved in the bond). For instance, in \(H_2\) (\(H - H\)), each \(H\) atom contributes one electron to form the single bond with a total of 2 electrons in the bond.

Answer:

Question 8: Lines are used to represent a bond in a covalent compound.
Question 9: There are 2 electrons in a single bond.