Which formulas represent compounds? will give 20 points/ a. h2 ; co2 b. co2 ; h2o c. h2 ; o2 d. o2 ; h2o2

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

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

If e is the symbol for an element, which two of the following symbols represent isotopes of the same element? 1. e2. e3. ea.1 and 2c.1 and 4b.3 and 4d.2 and 3