Which of the following metamorphism is affected by heat and reactive fluid

Heat: Temperature is a key variable in metamorphism: • High temperatures occur near to igneous intrusions, where the magma heats the surrounding rocks. Temperature also increases with depth, due to the geothermal gradient. As temperature increases, the rate of metamorphic reactions also increases.

Perimeter? wheres the answers

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o