Is comets greater than meteoroids

Who is better, messi or cristiano, i need this for a chemistry class. asap

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

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