Two-part epoxy is a versatile adhesive that can be used to glue things together. Unlike most glues, it consists of two liquids that must be mixed together. When the liquids are combined, the mixture becomes warm indicating that a chemical reaction is taking place in which
A. the bonds holding together the molecules in the reacted mixture are stronger that the bonds holding together the molecules of the unmixed liquids.
B. the bonds holding together the molecules in the reacted mixture are weaker that the bonds holding together the molecules of the unmixed liquids.
C. heat is flowing against its naturally preferred direction, from the room into the epoxy.
D. chemical potential energy is increasing.
Answer:A
Two-part epoxy is a versatile adhesive that can be used to glue things together. Unlike most glues, it consists of two liquids that must be mixed together. When the liquids are combined, the mixture becomes warm indicating that a chemical reaction is taking place in which
A. the bonds holding together the molecules in the reacted mixture are stronger that the bonds holding together the molecules of the unmixed liquids. B. the bonds holding together the molecules in the reacted mixture are weaker that the bonds holding together the molecules of the unmixed liquids. C. heat is flowing against its naturally preferred direction, from the room into the epoxy. D. chemical potential energy is increasing.