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The monomer of polyethylene is ethylene - H2C=CH2. {eth=2 carbons, ene=a CC double bond} Two methane - H2CH2 or H3CH - molecules condense to form ethane: H3C-CH3 + 2 H+. Another 2 H+ removal, or condensation, gives the -ene H2C=CH2.
Polymerization of the -enes is the next step. Via another condensation reaction, a poly-eth-ene appears thusly: H2C=CH|HC=CH|HC=CH|HC=CH|HC=CH|HC... & etcetera.
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∙ 13y ago
Methane gas does not directly react to form a polyethylene chain. Polyethylene is typically produced from ethylene gas through a process called polymerization, in which ethylene monomers are bonded together to form the polyethylene chain. Methane can be converted to ethylene through various chemical processes before polymerization can occur.
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Can Acetylene Gas be used to form long chain hydrocarbons?
I have heard that Methane can be used to form longer chain hydrocarbon fuels, -why not the much higher energy bonded Acetylene?
Is this reaction Endothermic The combustion of propane in oxygen to produce carbon dioxide and water vapor. And does methane or propane produce more energy combustion I just dont understand this?
The combustion of propane in oxygen is exothermic, meaning it releases energy in the form of heat and light. Methane typically produces more energy when combusted compared to propane, as it has a higher energy content per unit mass. Methane is also more efficient in combustion due to its simpler chemical structure, which requires less energy to break its bonds.
How do free radicals continue combustion?
Free radicals continue combustion by initiating chain reactions where they react with other molecules to form new radicals, which then react with more molecules, creating a self-sustaining cycle. This chain reaction produces heat and energy, contributing to the sustained combustion process.
What are the polymers formed from Ethene?
Polymers formed from ethene include polyethylene (PE) and ethylene-vinyl acetate (EVA). These polymers have a wide range of applications due to their flexibility, durability, and resistance to moisture and chemicals. Polyethylene is commonly used in packaging, while EVA is used in footwear, adhesives, and solar cell encapsulation.
Is polymerize to form polyethylene a chemical or physical?
Polymerization is not a property; it is a type of chemical reaction.
How did polyethylene form?
It forms through addition polymerisation. The double bonds in ethene break to form a long continuous chain ( a polymer) which is polyethylene.
Methane oxygen carbon dioxide water?
Methane (CH4) is a greenhouse gas produced by natural processes and human activities like agriculture. Oxygen (O2) is a vital component in respiration and combustion reactions. Carbon dioxide (CO2) is a greenhouse gas that plays a crucial role in the Earth's carbon cycle. Water (H2O) is essential for life and exists in all three states of matter on Earth.
How do cfc's react with the uv rays of the sun?
CFCs break down in the presence of UV radiation in the upper atmosphere. When broken down, they release chlorine atoms that can then destroy ozone molecules, leading to ozone depletion. This can result in harmful effects such as increased UV radiation reaching the Earth's surface.
Can Acetylene Gas be used to form long chain hydrocarbons?
I have heard that Methane can be used to form longer chain hydrocarbon fuels, -why not the much higher energy bonded Acetylene?
What is a single molecule that may react with similar molecules to form a chain?
"monomer"
What are the polymers formed from Ethene?
Polymers formed from ethene include polyethylene (PE) and ethylene-vinyl acetate (EVA). These polymers have a wide range of applications due to their flexibility, durability, and resistance to moisture and chemicals. Polyethylene is commonly used in packaging, while EVA is used in footwear, adhesives, and solar cell encapsulation.
What is an exmaple of a chemical reaction for exothermic?
Methane and oxygen react to form water and carbon dioxide and release considerable heat.
Why are carbides of beryllium and aluminium are called methanides?
Carbides of beryllium and aluminium are called methanides because they react with methane gas to form compounds. These carbides have the ability to react with methane in a way that is similar to other metal carbides, which is why they are classified as methanides.
How do flurocarbons affect the ozone layer?
They react with ozone. Decompose it and form a chain reaction.
What is methane in the periodic table?
Methane is not found on the periodic table itself, as it is a compound composed of carbon and hydrogen atoms. However, carbon, the primary element in methane, is located in Group 14 of the periodic table.
Is methane an acid?
No, methane is not an acid. It is a simple hydrocarbon compound with the chemical formula CH4. Acids typically have a sour taste, can react with metals to form hydrogen gas, and can neutralize bases.
What is the products of hydrogen and carbon?
When hydrogen and carbon react, they can form various products depending on the conditions. However, under normal conditions, they typically react to form hydrocarbons such as methane (CH4) or hydrogen gas (H2) and carbon monoxide (CO).
