Mole to Mole Stoichiometry

Which of the following represent a mole ratio between silver nitrate and copper(II) nitrate in the following reaction:
2AgNO₃ + Cu --> Cu(NO₃)₂ + 2Ag

• 2 mol AgNO₃ / 2 mol Ag
• 2 mol Ag / 2 mol AgNO₃ 
• 2 mol AgNO₃ / 2 mol Cu(NO₃)₂
• 2 mol AgNO₃ / 1 mol Cu(NO₃)₂

Tags

NGSS.HS-PS1-7

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

Tags

NGSS.HS-PS1-7

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?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-7

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

New problem: If 16 moles of carbon dioxide are formed by this reaction, how many moles of water were also produced?

• 4 mol H₂O

• 6 mol H₂O

• 24 mol H₂O

• 96 mol H₂O

Tags

NGSS.HS-PS1-7

What number should be in front of each substance in the chemical equation?

___N₂+___F₂ --> ___ NF₃

• 1, 2, 3

• 2, 1, 3

• 1, 3, 2

• 3, 1, 2

Tags

NGSS.HS-PS1-7

What coefficient should be used to make the following equation balanced?
N₂+O₂--> _NO 

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-7

For the following reaction, how many moles of silver is produced, if 10 moles of silver nitrate is completely reacted during the reaction?
2AgNO₃ + Cu --> Cu(NO₃)₂ + 2Ag

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

Tags

NGSS.HS-PS1-7

For the following reaction, how many moles of pure copper is need to produce 8 moles of pure silver?

2AgNO₃ + Cu --> Cu(NO₃)₂ + 2Ag

• 1 moles

• 2 moles

• 4 moles

• 8 moles

Tags

NGSS.HS-PS1-7

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

Tags

NGSS.HS-PS1-7

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

Tags

NGSS.HS-PS1-7