Magnesium and Titanium.
The physical properties of nylon and leather that make them good materials for shoelaces is that they are both durable and flexable
Polystyrene is used in hair dryers because it is a lightweight and cost-effective material that has good insulating properties. These properties help to reduce heat loss and improve the energy efficiency of the hair dryer, making it more effective at heating and drying hair.
Polyurethane is known for its durability, flexibility, and resistance to abrasion and chemicals. It is also lightweight and can be molded into a variety of shapes, making it a versatile material for a wide range of applications.
The answer depends on what you intend to build. Balsa is a very lightweight but flimsy material that is good for building model airplanes, among other things, but may not be useful if you intend on using it for any type of load-bearing.
CEMENT
because it is safe and strong
wood
Convert the benzene into Phenol which is a good antiseptic material.
cheapest material is Mild steel having very good properties of shaft.
A material with a density of 0.2 g/ml is light, suitable for cushions in a couch since it provides softness without adding too much weight. However, it wouldn't be ideal for building a bridge due to its low mass and potential inability to support structural requirements.
Clay is not a good material when making a road. When clay dries, it is easily broken. Clay is also not a strong enough material for lots of heavy vehicles to be on it.
Silver fluoride is not a good conductor of electricity. While silver is a good conductor of electricity, the addition of fluoride changes the properties of the material, making it a poor conductor. Silver fluoride is actually used as a non-conductive material in certain applications.
Iron is a good material for making a gas stove because it is durable, can withstand high temperatures without deforming, and has good heat retention properties, which helps in evenly distributing heat across the stove surface. Additionally, iron is relatively inexpensive compared to other materials like stainless steel, making it a cost-effective option for manufacturing gas stoves.
Flint stone is used for walls because it is a hard and durable material, making it resistant to weathering and erosion. It also provides good insulation properties and has a natural aesthetic appeal, making it a popular choice for construction. Additionally, flint is abundant in certain regions, making it a cost-effective building material.
The textile which is used in a bandage may be a poly-amide material or a viscose material which has good absorbing properties and elastic properties. It helps in retaining the medicine and it is bio-degradable.
Magnesium and Titanium.