8.6 Review

4NH₃ + 5O₂-->4NO + 6H₂O
What is the total number of moles of H₂O produced when 12 mole of NH₃ is completely consumed?

• 15
• 18
• 20
• 24

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Ethane (C₂H₆) combusts in the above reaction. What is the mole ratio of carbon dioxide to water?

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• 
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• 

For the following reaction, how many moles of silver (Ag) is produced, if 10 moles of silver nitrate (AgNO₃) is completely reacted during the reaction?

2AgNO₃ + Cu --> Cu(NO₃)₂ + 2Ag

• 2 moles
• 2.5 moles
• 5 moles
• 10 moles

N₂ + 3H₂ --> 2NH₃
How many moles of N₂ is needed to react with 6 moles of H₂?

• 6.7
• 2.0
• 3.0
• 15.0

2Na + S -->Na₂S
What is the total number of moles of S that reacts when 4.0 moles of Na were completely consumed?

• 1
• 2
• 0.5
• 4

A formula with the lowest whole # ratio of elements in a compound is called

• Molecular Formula
• Chemical Formula
• Empirical Formula 
• Distance Formula

What is the empirical formula for N₂S₃?

• NS

• N₃S₂

• N₂S₃

• N₁S_1.5

Which pair has the same empirical formula?

• NaCrO₄ and Na₂Cr₂O₇
• C₂H₄O₂ and C₆H₁₂O₆
• C₃H₆O₃ and C₂H₆O₂
• CH₄ and C₂H₆

Which of the following is considered an empirical formula?

• C₂H₄O₂

• C₆H₁₂O₆

• H₂O

• Mg₂Cl₄

What is the empirical formula of C₄H₆ ?

• CH

• CH₃

• C₂H₃

• C₄H₆