5. You encounter a material that is white, powdery, with a low melting point, and no luster. Is this material likely to be made of a metal or a nonmetal? Justify your answer. (5 pts)

The clouds are grey and ground is wet. a quantitative b qualitative

One does not belong why? ice, gold ,wood ,diamond and table salt

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