SAT2化学题,涉及randomness Increased randomness results under which of the following conditions? 1.A 1L sample of He(g) and 1L sample of Ne(g) are mixed in a 2L flask. 2.Ice melts. 3.CaO(s) reacts with CO2(g) to form CaCO3(s). (A)1 only (B)2 only (C)1 and 2 only (D)2 and 3 only (E)1,2,and 3 我只知道3不对,但谁能给我解释一下1和2为什么正确呢?