What is the enthalpy change for this reaction

CH4 + 4Br2 -> CBr4 + 4HBr

That result from subduction of oceanic plates beneath lighter continental plates. most of the earth's volcanoes are located around the pacific ring of fire because that the location of most of the earth's subduction zones.

Bar graph

The se-ci  bonds is more polar  than s-br bond

Answer (b) supersaturation;