The industrial synthesis of H_2 begins with the steam-reforming reaction, in which methane reacts with high-temperature steam: CH4(g) + H2O (g) → CO (g) + 3H2(g)
What is the percent yield when a reaction vessel that initially contains 63.0 kg CH4 and excess steam yields 12.9 kg H2?

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

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

When balancing a chemical equation: