CHEMISTRY

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. For which reaction is īSsys Ĩ 0?





A) CH4(g) + 2 O2(g) ¡÷ CO2(g) + 2 H2O(l)

B) NH3(g) + HCl(g) ¡÷ NH4Cl(s)

C) 2 NH4NO3(s) ¡÷ 2 N2(g) + O2(g) + 4 H2O(g)

D) HCl(aq) + NaOH(aq) ¡÷ NaCl(aq) + H2O(l)

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    I don't understand the symbols you've used.

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