In a new chemical process, a reboiler for a tower requires a heating medium at 290°c. two possible solutions have been suggested: (a) use high-pressure steam superheated to 320°c, and (b) use saturated steam at 320°c. suggest one disadvantage for each suggestion.

Embryos of different species look very similar, which shows that the organisms share a ancestor.

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?