Given the reaction 2CO + O2 = 2CO2, what is the minimum number if moles of O2 required to produce one mole of CO2?

0.5 moles of O₂

Explanation:

See the stoichiometry of the reaction:

2CO + O₂ → 2CO₂

2 moles of carbon monoxide need 1 mol of oxygen to react in order to produce 2 moles of carbon dioxide.

If I want to produce 1 mol of CO₂, I just need the half of O₂.

You will see in this rule of three. Ratio is 2:1

2 moles of CO₂ are produced by 1 mol of O₂        (Stoichiometry - reaction)

1 mol of CO₂ will be produced by ( 1 . 1) / 2 = 0.5 moles

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.