Choose the thermochemical equation that illustrates ΔH°f for K2SO4(s).

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy