According the article , why is it difficult for many cities in the U. S today to recycle

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Find the mass, in grams, of 5.00*10^23 molecules of f2