What type of mixture can be separated using a sieve

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

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2