2. Gas A has twice as much mass as Gas B. Compared to one mole of gas A, one mole of gas B contains:
a) one-half as many particles
b) the same number of particles
c) twice as many particles
d) 22.4 times as many particles

Which one of the following gases is not an important component of soil?

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.