Plastics and Polymers

Plastic, wood, and iron are all materials composed of atoms. Plastic is a synthetic material made up of long chains of molecules called polymers, typically derived from petrochemicals. Wood is a natural composite material made up of cellulose fibers held together by lignin, a complex organic polymer. Iron is a metallic element composed of iron atoms arranged in a crystalline lattice structure.

Oh, dude, it's like this - polystyrene melts when in contact with plastic electrical cable insulation because the insulation material can reach temperatures that are higher than the melting point of polystyrene. So, when they touch, it's like a hot mess waiting to happen. It's all about that heat transfer, man.

Magnesium bicarbonate is a relatively strong base and requires twice as much lime to neutralize it compared to other magnesium compounds.

Mass I think because foam is not a shell structure or frame.

Nylon is an example of a synthetic polymer. It is a versatile material used in various applications such as textiles, plastics, and industrial components due to its strength, durability, and resistance to wear and tear.

NO!!! You do NOT break monomers.

However, monmers have a carbon/carbon double bond. One bond of this double bond breaks to give two 'loose ends'. These loose ends then combine with the loose ends of another mon0mers to form a polymer.

Monomer + monomer = polymer.

H2C=CH2 + H2C=CH2 = -[-CH2-CH2-CH2-CH2-]-(n)

H2C=CHCl + H2C=CHCl = -[-CH2-CHCl-CH2-CHCl-]-(n)

These polymers are named 'polyethylene/polychloroethen (polythene / PVC).

NB THere are many different polymers.

NB The product polymer is normally written is this way, because in polymerisation thousands if not millions of monomer molecules combine. The 'n' stands for any number in the chain .

Yes, a rubber ball is typically made from synthetic polymers such as polybutadiene or polyisoprene. These polymers give the rubber its elasticity and bounce.

Plastics can take hundreds of years to decompose, contributing to environmental pollution. They can also release harmful chemicals when they break down, posing risks to human health. Additionally, plastics are a major contributor to marine pollution, endangering marine life and ecosystems.

No, the monomers of DNA are nucleotides, not nucleic acids. Nucleotides are composed of a sugar molecule, a phosphate group, and a nitrogenous base. Nucleic acids are polymers made up of nucleotide monomers, and DNA is a specific type of nucleic acid.

Transition metals such as nickel, chromium, and titanium are commonly used as catalysts in ethylene polymerization reactions. These metals help to initiate and control the polymerization process, leading to the formation of polyethylene with specific properties.

A linear polymer, where the monomer units are connected in a straight line, can be described as having one starting point and one ending point. Examples of linear polymers include polyethylene and polypropylene.

Plastic furniture is lighter, more affordable, and easier to maintain than wooden furniture. It is also more resistant to moisture and other environmental factors, making it a practical choice for outdoor or high-traffic areas. Additionally, plastic furniture can be molded into various designs and colors, offering more versatility in terms of style and aesthetic appeal.

cellulose

Plastic furniture is gaining preference over wooden furniture because it is typically more cost-effective, lightweight, durable, and easy to clean. Plastic furniture is also less prone to damage from weather and insects compared to wooden furniture, making it a popular choice for outdoor use. Additionally, plastic furniture is available in a wide range of designs and colors, offering more versatility in terms of style and aesthetic appeal.

The basic building block or monomer of lipids is a fatty acid. Fatty acids consist of a hydrophilic (water-attracting) carboxylic acid group at one end and a hydrophobic (water-repelling) hydrocarbon chain at the other end. These fatty acids can join together through dehydration synthesis to form various types of lipids such as triglycerides, phospholipids, and cholesterol.

The trait of an organism is coded for by genes, which are segments of DNA. These genes encode for specific proteins or traits, not polymers. Polymers are large molecules made up of repeating subunits, such as nucleotides in DNA or amino acids in proteins.

Using reusable bags helps reduce single-use plastic waste, which is a major contributor to pollution in oceans and landfills. Reusable bags are more durable and can be used multiple times, reducing the overall environmental impact compared to plastic bags. Furthermore, reusable bags help conserve resources and reduce the energy needed to produce and dispose of single-use plastic bags.

Children's cutlery is often made of plastic because it is lightweight, durable, and safe for young children to use. Plastic cutlery is also typically more affordable than metal alternatives, making it a practical choice for parents. Additionally, plastic cutlery comes in fun and colorful designs that appeal to kids.

No, dextrose is actually another name for glucose, a simple sugar. A polymer is a larger molecule made up of repeating units called monomers, whereas glucose is a monosaccharide, a single sugar unit.