Which is the daughter element in the following decay equation? 231
Pa →
He +
227
AC
91
2
89
227
AC
O A. 89
4
He
O B. 2
231
91
Pa
O c.
223
87
O D.

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Which sentence from holes contains an implied personality trait? stanley and his parents had tried to pretend that he was just going away to camp for a while, just like rich kids do. he'd just been in the wrong place at the wrong time. stanley felt somewhat dazed as the guard unlocked his handcuffs and led him off the bus. stanley nodded to show he understood

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?