are composed of long chains of polymers that are tangled and can be easily pulled apart by the application of tensile stress. These can easily be recycled. are composed of long chains of polymers that are strongly cross-linked to one another. These are difficult to recycle.
a. Thermoplastics, Thermosetting polymers
b. Thermosetting polymers, Elastomers
c. Thermosetting polymers, Thermoplastics
d. Elastomers, Thermoplastics

a. Thermoplastics, Thermosetting polymers

a. thermoplastics, thermosetting polymers

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.