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, 21.06.2019 21:30
The reaction q+r2=r2q is found to be first order in r2 and
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Chemistry, 22.06.2019 04:00
Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral
Answers: 3
Chemistry, 22.06.2019 05:30
Arecipe calls for 1.2 cups of oil. how many liters of oil is this?
Answers: 2
Chemistry, 22.06.2019 08:30
7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.
Answers: 1
Which reactions are endothermic? (select all that apply.) a. h2(g) + ½o2(g) h2o(aq), h = -57.83 kc...
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