The acetylene tank contains 35.0 mol c2h2, and the oxygen tank contains 84.0 mol o2.
how many moles of co2 are produced when 35.0 mol c2h2 react completely? how do you get 35.0 mol out of c2h2?

Answer : The number of moles of produced are, 70 moles

Solution : Given,

Moles of = 35 mole

Moles of = 84 mole

The balanced chemical reaction will be,

From the balanced reaction, we conclude that

As, 2 moles of acetylene react completely to give 4 moles of carbon dioxide

So, 35 moles of acetylene react completely to give moles of carbon dioxide

Therefore, the number of moles of produced are, 70 moles

the answer is d.) potassium