What is the best description of the Big Bang Theory? a massive explosion that created everything in the universe

two planets collided, creating the Sun and other planets

a rapid expansion of a densely packed, small area that expanded into the universe we know today

an explanation of how the universe is expanding and how big it is

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)