Whats the definition of efflorescence?

What is important to study for nios grade 12 chemistry? i have only one month left.

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

How many moles are in 123.0 grams of kclo4?