Find δhrxn for the following reaction: 2cds(s)+3o2(g)→2cdo(s)+2so2(g) use the following reactions with known δh values: 2h2s(g)s(s, rhombic)cdo(s)+++o2(g)o2(g)h2s(g)→→ →2s(s, rhombic)so2(g)cds(s)++2h2o(g)h2o(g) δh=−442.4 kjδh=−296.8 kjδh=−124.7 kj

1. they vary with a higher number because boiling is way hotter than melting

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.