What is the cation exchange capacity (in meq/100 g) of a 200 g soil sample that contains the following amounts of exchangeable cations: 360 mg ca2+, 46 mg na+, 312 mg k+, and 216 mg mg2+?

use the following molar weights: ca2+ = 40.1 g/mol; na+ = 23.0 g/mol; k+ = 39.1 g/mol; mg2+ = 24.3 g/mol.

Select the correct answer.look at this nineteenth-century illustration of london. which explanation best relates this illustration to changes in britain in the 1800s? a.factory workers in cities lost their livelihood because of the lack of housingb.industrialization narrowed the inccome gap between landowners and workers.c.the migration of workers from rural to urban areas resulted in overcrowded citiesd.the spread of railways allowed farmers to sell produce far from where it was grown.