Lewis Structure & Balancing Equations Review

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

Tags

NGSS.MS-PS1-1

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

How many electrons should Carbon have around its Lewis dot model?

• 1
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

Which of the following is the correct Lewis structure for the compound PBr₃?

• structure A
• structure B
• structure C
• structure D

Tags

NGSS.MS-PS1-1

Which of the following is the correct Lewis structure for CH₂O?

• Option A
• Option B
• Option C
• Option D

Tags

NGSS.MS-PS1-1

Which of the following elements will NOT be surrounded by an octet of electrons in a correctly drawn Lewis structure?

• carbon
• oxygen
• chlorine
• hydrogen

Which of the following is an ionic bond?

• H₃N
• CaCl₂
• NO₂
• SCl

Tags

NGSS.HS-PS1-3

Choose the structure that forms a double bond.

• Carbon monoxide (CO)
• Carbon dioxide (CO₂)
• Water (H₂O)
• Cyanic Acid (HCN)

Tags

NGSS.MS-PS1-1

Which of the following is the correct formula for these two ions: Al⁺³ & S^-2

• AlS₃

• Al₂S₃

• Al₃S₂

• Al₃S

Tags

NGSS.MS-PS1-1

When ionic compounds form what is the overall charge?

• neutral

• positive

• negative

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2