Final answer:
LDPE is used in products such as food wrap and plastic film applications, while HDPE, with its higher tensile strength, is suited for sturdier products like milk jugs and water pipes. LDPE can also be used for some types of rigid containers, but is not ideal for items requiring high structural integrity.
Step-by-step explanation:
Low-density polyethylene (LDPE) is used in a variety of applications due to its unique properties, such as high ductility and the ability to flow easily when molten. LDPE is commonly used in items like food wrap and plastic film applications, including plastic bags and film wrap.
On the other hand, high-density polyethylene (HDPE) has a greater density and lesser degree of branching, leading to stronger intermolecular forces and higher tensile strength. HDPE is typically used in sturdier applications including milk jugs, detergent bottles, and water pipes. Recycled HDPE is identified with a plastic identification code (PIC) of "2" or the letters "HDPE" inside the recycling symbol.
In the context of the student's question about applications of LDPE, the correct answers would be 1) food wrap as a plastic film application, and potentially 2) rigid containers, depending on the processing and design. LDPE is not usually used for load-bearing or pressure-resistant items like drain pipes or television cabinets, which are more likely to be made from materials with higher tensile strengths such as HDPE or other plastics.