对于下列反应,在定温下,增加总压力,平衡常数K_(x)不变的是A. (HCl(aq)) + (CaCO)_3((s)) = (CO)_2((g)) + (H)_2(O)((l)) + (CaCl)_2((aq));B. (CaCO)_3((s)) = (CaO)((s)) + (CO)_2((g));C. (C(s)) + (O)_2((g)) = (CO)_2((g));D. (N)_2((g)) + 3(H)_2((g)) = 2(NH)_3((g));E. (H)_2((g)) + (Cl)_2((g)) = 2(HCl)((g));

A. $\text{HCl(aq)} + \text{CaCO}_3(\text{s}) = \text{CO}_2(\text{g}) + \text{H}_2\text{O}(\text{l}) + \text{CaCl}_2(\text{aq})$;

B. $\text{CaCO}_3(\text{s}) = \text{CaO}(\text{s}) + \text{CO}_2(\text{g})$;

C. $\text{C(s)} + \text{O}_2(\text{g}) = \text{CO}_2(\text{g})$;

D. $\text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) = 2\text{NH}_3(\text{g})$;

E. $\text{H}_2(\text{g}) + \text{Cl}_2(\text{g}) = 2\text{HCl}(\text{g})$;