Mole Ratios & Mol to Mole

1 - In Stoichiometry, a balanced reaction is used to calculate amounts of ________

• either reactants or products

• reactants only

• products only

2 - Coefficients are needed to:

• Balance a reaction

• Write mole ratios

• Both are correct

Tags

NGSS.HS-PS1-7

3 - Mole ratios are obtained from the

• balanced chemical equation
• periodic table
• molar mass

4 - What is the Coefficient of Ammonia (NH₃) in the balanced reaction:

N₂ + 3H₂ → 2NH₃

• 2

• 3

• 1

Tags

NGSS.MS-PS1-5

5 - What is the ratio of moles of FeCl₃ to moles of Cl₂?

• 2 : 3

• 1 : 3

• 4 : 3

• 2 : 1

Tags

NGSS.HS-PS1-7

• 4:5

• 1:1

• 2:3

• 5:6

Tags

NGSS.HS-PS1-7

7 - What is the mole ratio of Aluminum to Oxygen in the chemical reaction:

4Al + 3O₂ --> 2Al₂O₃

• 3:2

• 2:3

• 3:4

• 4:3

Tags

NGSS.MS-PS1-5

N₂ +  3H₂ −->  2NH₃ 
8- How many moles of H₂ are needed to react with 2 moles of N₂?

• 6
• 2
• 3

Tags

NGSS.HS-PS1-7

2H₂ + O₂ --> 2H₂O

9 - Based on the ratios in the chemical equation, if you have 4 mol of H₂, how many moles of water will be produced?

• 1

• 2

• 4

• 8

Tags

NGSS.MS-PS1-5

10 - How many moles of FeCl₃ are produced from 85.4 moles of Cl₂?

• 31.56 moles FeCl₃

• 42.89 moles FeCl₃

• 56.93 moles FeCl₃

• 72.68 moles FeCl₃

Tags

NGSS.HS-PS1-7