The following balanced equation shows the formation of water. 2h2 + o2 > 2h2o how many moles of oxygen (o2) are required to completely react with 27.4 mol of h2? a: 6.8 mol b: 13.7 mol c: 54.8 mol d: 109.6 mol

Im not entirely sure, but i think the answer is c was i right let me know.

what are the two models

explanation:

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.