Question
Once ethylene Is made, It reacts with other ethylene monomers to make polyethylene.
envienel
polyethylene
Long polyethylene chains can be arranged In different ways. If these chains line up side by side, high-density polyethylene, or HDPE, Is made.
high density polyethylene (HDPE)
Select the true statements.
Ethylene is a polymer.
Polyethylene Is made of carbon and hydrogen.
Many ethylene molecules are joined together to form polyethylene.
HDPE Is made of long side-by-side chains of polyethylene.
Answers
GPT-4o mini
Let's evaluate the provided statements:
1. **Ethylene is a polymer.**
- **False**: Ethylene is not a polymer; it is a monomer. It serves as the building block that can be linked together to form polymers like polyethylene.
2. **Polyethylene is made of carbon and hydrogen.**
- **True**: Polyethylene is composed of carbon (C) and hydrogen (H) atoms.
3. **Many ethylene molecules are joined together to form polyethylene.**
- **True**: Polyethylene is formed when many ethylene monomers are joined together through polymerization.
4. **HDPE is made of long side-by-side chains of polyethylene.**
- **True**: High-density polyethylene (HDPE) features long chains of polyethylene that are arranged in a more linear, side-by-side fashion, leading to a denser structure.
Based on this evaluation, the true statements are:
- Polyethylene is made of carbon and hydrogen.
- Many ethylene molecules are joined together to form polyethylene.
- HDPE is made of long side-by-side chains of polyethylene.
1. **Ethylene is a polymer.**
- **False**: Ethylene is not a polymer; it is a monomer. It serves as the building block that can be linked together to form polymers like polyethylene.
2. **Polyethylene is made of carbon and hydrogen.**
- **True**: Polyethylene is composed of carbon (C) and hydrogen (H) atoms.
3. **Many ethylene molecules are joined together to form polyethylene.**
- **True**: Polyethylene is formed when many ethylene monomers are joined together through polymerization.
4. **HDPE is made of long side-by-side chains of polyethylene.**
- **True**: High-density polyethylene (HDPE) features long chains of polyethylene that are arranged in a more linear, side-by-side fashion, leading to a denser structure.
Based on this evaluation, the true statements are:
- Polyethylene is made of carbon and hydrogen.
- Many ethylene molecules are joined together to form polyethylene.
- HDPE is made of long side-by-side chains of polyethylene.