While cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius. assume power went off. no heat was lost to the surrounding, could the steak be cooked to a perfect medium rare? room temperature is 25 celsius. the cast iron heat capacity is 450 j/kg k. the initial temperature of meat is 20 celsius, and the perfect temperature of medium rare steak 57 celsius. the heat capacity of beef loin is 0.66 kcal/kg celsius.

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

37.0 °c = °f (human body normal temperature)

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?