A spontaneous reaction: A. goes forward under the given set of conditions B. goes forward only at room temperature and only if it is exothermic C. does not go forward under the given set of conditions D. is always exothermic E. is always endothermic

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.