Chemistry, 15.07.2019 15:30 morgan4411
Which reactions are endothermic? (select all that apply.) a. h2(g) + ½o2(g) h2o(aq), h = -57.83 kcal/mole b. ½ n2(g) + ½o2(g) no(g), h = +21.6 kcal/mole c. ½n2(g) + o2(g) + 8.1 kcal no2(g) d. ½n2(g) + 3/2 h2(g) nh3(g) + 11.0 kcal/mole e. nh3(g) ½n2(g) + 3/2 h2(g), h = +11.0 kcal/mole
Answers: 1
Chemistry, 22.06.2019 05:30
Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change
Answers: 2
Chemistry, 22.06.2019 16:50
Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m
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Chemistry, 22.06.2019 21:50
If e is the symbol for an element, which two of the following symbols represent isotopes of the same element? 1. e2. e3. ea.1 and 2c.1 and 4b.3 and 4d.2 and 3
Answers: 2
Which reactions are endothermic? (select all that apply.) a. h2(g) + ½o2(g) h2o(aq), h = -57.83 kc...
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