180grams of sulfur (S) reacted with an unknown amount of oxygen (O2) to produced 220g of sulfur trioxide (SO3). How much oxygen was needed? S + O2 ® SO3 Group of answer choices

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g

Asolid that forms and separates from a liquid mixture is called

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