Want to take this practice test in an online interactive format? much more: mometrix.com/bonus 948 /acsgenchem mich of the following processes absorbs heat? Dry ice sublimates at room temperature to form \( \mathrm{CO}_{2} \) gas. S. \( \mathrm{NH}_{3} \) gas condenses under a cold bath of \( -35^{\circ} \mathrm{C} \) to the liquid form. c. Liquid glacial acetic acid freezes in an ice-water bath. d. Iodine vapor captured in a jar forms crystalline iodine when it contacts the cooler lid.

Balance the following chemical equation (if necessary): \( \mathrm{MnO}_{2}(\mathrm{~s})+\mathrm{HCl}(\mathrm{aq}) \rightarrow \mathrm{MnCl}_{2}(\mathrm{aq})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l})+\mathrm{Cl}_{2}(\mathrm{~g}) \)

Укажите для окислительно-восстановительной реакции \( \mathrm{Na} 2 \mathrm{~S} 2 \mathrm{O} 3+\mathrm{H} 2 \mathrm{O} 2=\mathrm{Na} 2 \mathrm{SO} 04+\mathrm{H} 2 \mathrm{SO} 04+\mathrm{H} 2 \mathrm{O} \) сумму коэффициентов в уравнении и атомную массу окислителя. Ответ записать в последовательности через запятую без интервалов

Which of the following processes is nost suitable for extracting sodium chloride from sea water? A. electrolysis B. crystallisation C. simple distillation O. fractional distillation

How many oxygen atoms are located on the reactant side of the following chemical equation? \( \mathrm{C}_{3} \mathrm{H}_{8}(\mathrm{~g})+5 \mathrm{O}_{2}(\mathrm{~g}) \rightarrow 3 \mathrm{CO}_{2}(\mathrm{~g})+4 \mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \)

Значение ЭДС гальванического элемента, состоящего из ртутного и кадмиевого электродов при стандартных условиях равно_B ( \( \left(^{0} \mathrm{Mg}^{2+} / \mathrm{Mg}=-2,38 \mathrm{~B}, \mathrm{E}^{0} \mathrm{Cu}^{2+} / \mathrm{Cu}=0,34 \mathrm{~B}\right) \).