During which season is the sun highest in the sky? summer

autumn

winter

spring

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

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)

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6