In the equation: 2H2 + O2 --> 2H2O

What mass of Hydrogen Gas will completely react with 4 moles of Oxygen gas

(Hint: going from moles to mass of another compound)
A)8 g
B)16 g
C)24 g

B) 16 g

Explanation:

First we convert 4 moles of O₂ into moles of H₂, using the stoichiometric coefficients of the balanced reaction:

Finally we convert 8 moles of H₂ into grams, using its molar mass:

Thus, the correct answer is option B).

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.