The change in entropy, Δ∘rxn , is related to the the change in the number of moles of gas molecules, Δgas . Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. C(s)+H2O(g) ⟶ CO(g)+H2(g) Δgas = The entropy, Δ∘rxn, a) decreases b) has little or no change c) increases B. H2O2(l) ⟶ H2(g)+O2(g) Δgas = The entropy, Δ∘rxn, a) decreases b) has little or no change c) increases C. S(s)+O2(g) ⟶ SO2(g) Δgas = The entropy, Δ∘rxn, a) decreases b) has little or no change c) increases D. N2O2(g) ⟶ 2NO(g)+O2(g) Δgas = The entropy, Δ∘rxn, a) decreases b) has little or no change c) increases

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.

is there any options? maybe im just not seeing them but i need the options to

-love shrooms

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.