What will the sign on AS be for the following reaction and why? 2 Mg (s) + O2 (g) → 2 MgO (s) A) Positive, because there is a solid as a product. B) Positive, because there are more moles of reactant than product. C) Positive, because it is a synthesis reaction. D) Negative, because there are more moles of gas on the reactant side than the product side. E) Negative, because there are more

When magnesium reacts with nitrogen, the reaction container becomes very hot. The ΔH for this reaction will have a positive sign. A) True  B) False

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Which of the following statements are true for a typical calorimeter. Group of answer choices a The substance being burned is endothermic with a ΔΔH being positive, while the water is exothermic with a ΔΔH being negative.   b The substance being burned is exothermic with a ΔΔH being negative, while the water is endothermic with a ΔΔH being positive.   c The substance being burned is exothermic with a ΔΔH being positive, while the water is endothermic with a ΔΔH being negative.   d The substance being burned is endothermic with a ΔΔH being negative, while the water is exothermic with a ΔΔH being positive.

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6:17 AM Wed Jan 25 Question 26.b of 28 A 8.65 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee cup calorimeter. Before placing the sample in the water, the temperature of the salt and water is 23.72 °C. After the salt has completely dissolved, the temperature of the solution is 28.54 °C. What is the change in temperature, in °C, inside the calorimeter? Tap here or pull up for additional resources 1 4 7 +/-

In GM In CPC PC PC Pa If: CIC a dike x Q QΣ QSy Q Q SC Sc https://discord.com/channels/@me/955984518483947580 G Previous Page Next Page Page 14 of 24 Question 14 (Mandatory) At 462°C, the reaction heat + 2NOCI(g) What is the Ke at 462°C for the reaction, 4NOC 2NO(g) + Cl2(g) has an equilibrium constant of 8.00 x 10-² 4NO2Cl2? (A) a) 0.283 b) 12.5 Oc) 3.54 Page 14 of 24 Sa wa w CW+ 0 3 d) 6.40x10-3 e) 8.00 x10-² p.com/attachments/955984518483947580/964170902176546886/IMG_9035.jpg here to search O Et O 20°C Cloudy ^ ENG D 7:37 PM 2022-06-08 W Chemistry