What kind of change forms a new substance? A. A solubility change
B. A chemical change
C. A phase change
D. A physical change

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

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)