Which statement best describes evidence that a chemical reaction occurs as a cake bakes?
A) The water in the cake batter evaporates.
B) The cake rises as gas bubbles form in the baking cake.
C) The cake takes the shape of the container in which it is baked.
D) The water in the cake batter is used to keep the cake moist as it bakes.

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.