The value of Keq for the equilibrium ; CO2 (g) + 2H2 (g) CH3OH (g) is 14.5 at 483 °C. What is the value of Keq for the equilibrium below? ½ CO2 + H2 (g) ½ CH3OH (g).

What is the pH of the resulting solution if 30.00 mL of 0.10 M acetic acid is added to 10.00 mL of 0.10 M NaOH? Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3CO2H. SHOW YOUR WORK

Consider the following reaction at equilibrium: 2NH3 (g)   N2 (g) + 3H2 (g) ΔH° = +92.4 kJ. Le Châtelier’s principle predicts that removing N2 (g) to the system at equilibrium will result in ______.

If Kc = 7.04 × 10-2 for the reaction: 2 HBr(g) ⇌ H2(g) + Br2(g) what is the value of Kc for the reaction: ½ H2(g) + ½ Br2 (g) ⇄ HBr (g) ?

Of the nontracheophytes, which is the dominant generation, provides the nutritional support of the other generation?

If a fully plasmolyzed plant cell is transferred into pure, distilled water, which of the following sequence of events occurs as it recovers?

Which microscope would best show the internal details of a cell (for example organelles)?  

When a substance absorbs light energy and subsequently reflects light of a lower energy (longer wavelength) than the absorbed radiation, it is called:

lichens are a mutualist relationship between a __________ species and a species of unicellular ______________.

On the tree of life, which of the following is NOT one of the three domains?