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Here’s a high-yield practice question for anyone reviewing Gen Chem stoichiometry on the DAT
Let’s keep the DAT brain sharp! Here’s a quick question for anyone reviewing Gen Chem:
The number of moles of oxygen gas needed to react with four moles of magnesium to form the oxide is:
A) 1.0 mole
B) 2.0 moles
C) 3.0 moles
D) 4.0 moles
E) 6.0 moles
What’s your answer?
Scroll for explanation:
B is correct.
The balanced reaction is:
2Mg (s) + O₂ (g) → 2MgO (s)
For 4 moles Mg, you need 2 moles O₂.
Keep training like a beast, test like a legend.
Want more questions? Join our free DAT Facebook Study Group or visit orgoman.com!
— Nancy & Dr. Romano
Let’s keep the DAT brain sharp! Here’s a quick question for anyone reviewing Gen Chem:
The number of moles of oxygen gas needed to react with four moles of magnesium to form the oxide is:
A) 1.0 mole
B) 2.0 moles
C) 3.0 moles
D) 4.0 moles
E) 6.0 moles
What’s your answer?
Scroll for explanation:
B is correct.
The balanced reaction is:
2Mg (s) + O₂ (g) → 2MgO (s)
For 4 moles Mg, you need 2 moles O₂.
Keep training like a beast, test like a legend.
Want more questions? Join our free DAT Facebook Study Group or visit orgoman.com!
— Nancy & Dr. Romano
