Which of the following is best described as a synthesis reaction? 2hgo → 2hg + o2 agno3 + nacl → agcl + nano3 hcl + nahco3 → h2o + co2 + nacl 2na + cl2 → 2nacl

Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

In an energy pyramid, which level has the most available energy?

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.