Which is a nonpoint source of pollution? A. Tourists throw trash into the ocean.
B. A car mechanic pours oil on the ground.
C. Rain contains chemicals that seep into the ground.
D. A pipe dumps waste from a factory into a stream.

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)

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

Condensation happens when water vapor cools. true or false? ?