Bán kính của nguyên tử X, ion X+,X2+, X-,X2- theo thứ tự tăng dần

The reaction q+r2=r2q is found to be first order in r2 and

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

What are the similarities of physical and chemical change ?