which of the following is not an example of how watersheds can change over time?
a. rivers change course.
b. river channels become deeper.
c. flooding deposits sand and mud around a river.
d. flooding occurs when too much rain falls upstream.

What’s the percent by mass of carbon in c10h14n2

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

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)