Consider that calcium metal react next to oxygen gas surrounded by the upper air to form calcium oxide.?

Suppose we react 6.00 mol calcium with 4.00 mol oxygen gas. Determine the number of moles of calcium oxide produced after the allergic reaction is complete
Answers:
Reaction:

2Ca + O2 -> 2CaO

From the equation, you can see that 2 mole of calcium react with 1 mole oxygen

Therefore, 6 mole calcium will counter with 3 mole oxygen giving 6 mole calcium oxide (CaO)
write a balanced equation
find the limiting reactant by react both Ca and O2 with CaO2.
Then convert the limiting reactant in grams to moles by dividing the molecular counterweight of CaO2

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