Explain why the structure of the catalyst and its position within the car are important factors in determining the chemical efficiency of the catalytic converter.

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Draw two cyclic constitutional isomers of cis-1