Which of the following reactions would be the most spontaneous at 298 k? which of the following reactions would be the most spontaneous at 298 k? a + b → c; e°cell = +1.22 v a + 2 b → c; e°cell = +0.98 v a + b → 3 c; e°cell = +0.15 v a + b → 2 c; e°cell = -0.030 v more information is needed to determine.

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?