exothermic
no, it is the combining of 2 acids into a new acid.
It is a Synthesis reaction (also called Combination reaction) and is Exothermic , producing Sulfuric acid.
The reaction of sulfur and oxygen to produce sulfur dioxide is called combination or synthesis.
The reverse reaction is endothermic and nonspontaneous.
The reverse reaction is exothermic and spontaneous.
to serve as a catalyst and speed up the reaction
To prevetn evaporation of salicylic acid
... is an exothermic reaction (opposite of 'endothermic')
It is called an exothermic reaction. Example: a burning candle
A reaction can be classified as either endothermic or exothermic. Endothermic reactions absorb heat from the surroundings while exothermic reactions do the opposite.
Heat is released during an exothermic reaction.