— What about having a picnic in the open air during the coming May Day Holiday?— I simply can't wait!
A:Good idea!
B:That's all right!
C:Never mind.
D:You are welcome.
小明同学用天平称量物体的质量时,发现砝码已经磨损,则测量结果与真实值相比 ____(选填“偏大”、“偏小”或“相等”).
(1.)I2(g)+H2(g)⇌2HI(g)△H=﹣9.48kJ/mol
(2.)I2(S)+H2(g)⇌2HI(g)△H=+26.48kJ/mol
下列判断正确的是( )