Which of the following statements regarding watersheds is false? A. Watersheds are separated from one another by geographical boundaries rather than political boundaries (such as city or county lines).

B. Watersheds include all of the groundwater and surface water in an area, including runoff and water found in aquifers.

C. Watersheds are limited to bays, lakes, rivers, and other large bodies of water.

Aphysical reaction is a process in which one or more reactants change into one or more products with different properties. select the best answer from the choices provided t f

Which statement describes james chadwick’s discovery.

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)