Atmospheric chemists think that earth’s first atmosphere
a. was very similar to today’s atmosphere.
b. contained no oxygen atoms.
c. consisted of carbon in the form of carbon monoxide.
d. consisted of carbon in the form of carbon dioxide. e. contained nitrogen in the form of ammonia and nitrogen gas.

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?

Elizabeth has two separate samples of the same substance. sample is in the liquid state, and the other is in the solid state. the two samples most likely differ in which property?