5. Given the following unbalanced equation: N20(g) + O2(g) → NO2(g)

2 N2O(g) + 3 O2(g) --> 4 NO2(g)

Explanation:

this is the chemical reaction balanced, if that was ur question.

the correct answer is:

a. formation of precipitation

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.