Šta je natrij i koja je njegova uloga u ljudskom organizmu?

If this equation was completed which statement would it best support

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?