Mastering Mole Ratios

• A) 3:1

• B) 1:1

• C) 4:1

• D) 2:1

Tags

NGSS.HS-PS1-7

In the combustion of propane, C₃H₈ + 5O₂ → 3CO₂ + 4H₂O, what is the mole ratio of oxygen (O₂) to carbon dioxide (CO₂)?

• A) 5:3

• B) 1:1

• C) 5:4

• D) 3:5

Tags

NGSS.HS-PS1-7

Given the balanced equation N₂ + 3H₂ → 2NH₃, what is the mole ratio of nitrogen (N₂) to ammonia (NH₃)?

• A) 1:2

• B) 1:3

• C) 2:3

• D) 3:2

Tags

NGSS.HS-PS1-7

For the reaction 2Al + 3CuSO₄ → Al₂(SO₄)₃ + 3Cu, what is the mole ratio of aluminum (Al) to copper (Cu)?

• A) 2:3

• B) 3:2

• C) 1:1

• D) 2:1

In the equation 2KClO₃ → 2KCl + 3O₂, what is the mole ratio of potassium chlorate (KClO₃) to oxygen gas (O₂)?

• 2:3
• 2:2

• 3:2

• 1:1

Tags

NGSS.HS-PS1-7

What is the mole ratio of Fe to Fe₂O₃ in the reaction 4Fe + 3O₂ → 2Fe₂O₃?

• A) 4:2

• B) 2:1

• C) 4:3

• D) 1:1

Tags

NGSS.HS-PS1-7

In the balanced chemical equation 2Na + Cl₂ → 2NaCl, what is the mole ratio of sodium (Na) to chlorine gas (Cl₂)?

• A) 1:1

• B) 2:1

• C) 1:2

• D) 2:2

Tags

NGSS.HS-PS1-7

• A) 1:1

• B) 1:2

• C) 2:1

• D) 1:0

Given the equation 2Mg + O₂ → 2MgO, what is the mole ratio of magnesium oxide (MgO) to oxygen (O₂)?

• A) 2:1

• B) 1:1

• C) 1:2

• D) 2:2

Tags

NGSS.HS-PS1-7

In the reaction 2H₂S + 3O₂ → 2H₂O + 2SO₂, what is the mole ratio of hydrogen sulfide (H₂S) to sulfur dioxide(SO₂)?

• A) 1:1

• B) 2:2

• C) 2:3

• D) 1:2

Tags

NGSS.HS-PS1-7