ม5 Chemistry Topic 3 Revision

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-2

In an electron dot diagram, two pairs of shared electrons represents a ...

• single bond
• double bond
• triple bond
• quadruple bond

Tags

NGSS.HS-PS1-4

A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?

• 1
  1
• 3
• 4
• 6

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

Tags

NGSS.MS-PS1-1

The energy required to break the bond between two covalently-bonded atoms is the ________.

• Covalent breaking force

• Boiling point

• Bond disassociation energy

• Energy of dissolution

How many sigma bonds are in the following molecule?

• 2

• 3

• 4

• 5

How many pi bonds are in the following compound?

• 0

• 1

• 2

• 3

Name this compound. 
N₂O

• Dinitrogen monoxide
• Dinitrogen oxide
• Nitrogen oxide
• Nitrogen dioxide

What is the chemical formula for iodine heptafluoride?

• IF₇
• I₇F
• I₇F₇
• IF

What is the correct name for the molecule PBr₅?

• Phosphorus Bromide

• Phosphorus Pentabromide

• Pentaphosphorus bromide

• Phosphorus Bromine