Consider the following reaction: 2 A (aq) + B (aq) ⇌ C (aq) + D (aq) If the Kc for this equilibrium reaction is 44.9, and the equilibrium concentrations of A, B, and C are: [A] = 0.772 M, [B] = 0.0339 M, and [C] = 0.782 M, what is the equilibrium concentration (in M) of D?

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane