A catalyst can speed up the rate of a given chemical reaction by
A increasing the equilibrium constant in favor of
products.
B. lowering the activation cnergy required for the
reaction to occur.
C. raising the temperature at which the reaction
occurs.
D. increasing the pressure of reactants, thus
favoring products.

Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) → 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) → 3 o2 (g) + b2h6 (g), δhoa = +2035 kj (b) 2 b (s) + 3 h2 (g) → b2h6 (g), δhob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) → h2o (l), δhoc = −285 kj (d) h2o (l) → h2o (g), δhod = +44 kj

State the formula for density in words and mathematical symbols

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?