Final Exam Review

What is the charge of Iron in this compound. (Hint: think criss cross method):

Fe₃(PO₄)₂

• +2
• -2
• +3
• -3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the products of this synthesis reaction: H₂ + Cl₂ →

• HCl

• H₂Cl

• HCl₂

• H₂Cl₂

Tags

NGSS.MS-PS1-1

Name the following ionic compound: Cs₂S

• cesium II sulfide

• 
  cesium II sulfate

• cesium sulfide

• cesium sulfate

The covalent compound N₂O₅ would be named

• pentanitrogen oxide

• nitrogen oxide
• dinitrogen pentoxide

• dioxide pentanitrogen

Tags

NGSS.HS-PS1-1

Predict the products for the this Double Replacement reaction:

AgNO₃ + KCl →

• 
  AgK + ClNO₃

• 
  AgCl + 3 KNO

• AgCl + KNO₃

• 
  KAg + NO₃Cl

What is the formula of sulfur trioxide

How do electrons move in a metallic bond?

• Freely around all of the atoms

• 
  Around only atoms with small diameters

• 
  Tightly around the atom with the most bonds

• Around only the heaviest atoms

Which electron dot formula correctly represents the covalent compound boron trichloride, BCl3?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Anions ____ electrons, becoming _____ charged.

• 
  Gain; positively (+)

• 
  Lose; positively (+)

• Gain; negatively (-)

• Lose; negatively (-)

Cations _______ electrons, becoming _______ charged

• 
  Gain; positively (+)

• 
  Lose; positively (+)

• Gain; negatively (-)

• 
  Lose; negatively (-)