BaOH2aqBaS的精選

問題詳情：下列熱化學方程式中△H的含義表示正確的是（   ）A．H2SO4(aq)＋Ba(OH)2(aq)====BaSO4(s)＋2H2O(l)；    △H（中和熱）B．1/2H2SO4(濃)＋NaOH(aq)====1/2Na2SO4(aq)＋H2O(l)；△H（中和熱）C．H2(g)＋1/2O2(g)====H2O(g)；△H（燃燒熱）D．CH4...