What is the total energy change for the following reaction: H2 + I2 -> 2HI?
Given:

H-H bond: 436 kJ/mol

I-I bond: 151 kJ/mol

H-I bond: 297 kJ/mol

A. +297 kJ/mol

B. +7 kJ/mol

C. -7 kJ/mol

D. -290 kJ/mol

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution