An unknown substance has a ph of 6. what is the best description of this substance? *

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

Which characteristics can be used to differentiate star systems? check all that apply.

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?