Chapter 2 Review EST

Write the formula for the compound formed by barium + nitrogen

• Ba₂N₃

• Ba₃N₂

• BaN

• BaN₃

Potassium and Oxygen form ?

• PO
• KO
• K₂O
• KO₂

Barium and Selenium form ?

• BaSe
• Ba₂Se
• Ba₂Se₂
• BaSe₂

What would be the proper chemical formula for combining Al³⁺ and l^- :

• Al l₃
• Al₃l
• Al l
• Al₃ l₃

Tags

NGSS.MS-PS1-1

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.

Which of the following is NOT formed by a covalent bond?

• K₂S
• H₂O
• I₂
• CO₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Tags

NGSS.MS-PS1-1

Predict the bond that will form between Be and F.

• Ionic
• Covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the bond that will form between Se and Cl.

• Ionic
• Covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

phosphate

• PO₃^2-
• PO₃^3-
• PO₄^2-
• PO₄^3-