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Hydrocarbons

Hydrocarbons include Alkanes, Alkenes, Alkynes, Aromatic and Alicyclic compounds.

2,710 Questions

Why do you think some hydrocarbons are gases and others are liquids?

hydrocarbons are all compounds that include compounds with the basic components of carbon and hydrogen. They are all combustable. Hydrocarbons can also have additional elements compounded on, but the basic structure includes carbon and hydrogen.

Why can't hydrocarbons with only single bonds form geometric isomers?

Geometric isomerism, or Cis-trans isomerism refers to the orientation of functional groups in a molecule. Atoms bonded only by sigma bonds are able to rotate easily around the bond, so they don't hold a single orientation in space. With a pi bond, however, rotation does not occur, because the p orbitals of the two atoms need to stay aligned. This means that the orientation of a single molecule stays constant, in one of two possible arrangements. These are the geometric isomers.

Why can ethyne be collected by water displacement?

Ethyne is less soluble in water than other gases like oxygen and nitrogen. This allows ethyne to displace water when collected over water, as it is able to rise up through the water without dissolving into it.

What problems does methane cause?

Methane is a potent greenhouse gas that contributes to global warming and climate change. It can also displace oxygen in confined spaces, leading to asphyxiation risks. Additionally, methane leaks can pose explosion hazards in certain environments.

In halogenation of alkanes the reactions at room temperature is slow in dark while it is rapid in sunlight Why?

In the dark, the halogenation of alkanes is slow because it requires the presence of light to initiate the reaction. The reaction becomes rapid in sunlight because the light provides the energy needed to break the C-H bonds and initiate the radical chain reaction. This leads to the formation of reactive halogen radicals that can then further react with alkanes to produce halogenated products.

Can you use propane gas with natural gas logs why not?

No. you have to change the nozzles for the burners and for the stove portion. The replacement nozzles generally come on the rear of the stove upper right or left corner on a small 2" strip. the nozzles are small with 6flat sides to allow tightening with a wrench. to gain access to the nozzles for the range top generally you have to lift the top,remove the burner, unscrew the propane nozzle and attach the natural gas nozzle. the natural gas nozzle has a larger orifice to allow the gas to pass through to the actual burner. the stove is a bit more complicated but can be done by anyone who is semi mechanically inclined.

How is the poisonous gas formed when butane undergoes incomplete combustion?

When butane undergoes incomplete combustion, there is not enough oxygen present to form carbon dioxide (CO2) and water (H2O) as the end products. Instead, carbon monoxide (CO) and carbon particles (soot) are produced. The presence of carbon monoxide in the combustion process is what makes it dangerous and poisonous.

How can a scientist check if a substance contains alkenes?

The answer depends somewhat on the substance, but if it is suitable for infrared spectroscopy analysis and there are not interferences present, there are characteristic spectral lines for the carbon-carbon double bonds characteristic of alkenes. Nuclear magnetic resonance and/or Raman spectra should also work normally, but are much less widely available.

Why are hydrocarbons important to petroleum industry?

the use of hydrocarbons (alkanes) depends on the number of carbon atoms

number of carbon atoms form use

1-4 (g) heating and cooking fuel

5-7 (L) solvents and gasoline

6-18 (L) gasoline

12-24 (L) jet fuel and camp stove fuel

18-50 (L) diesel fuel, heating oil and lubricants

50+ (s) petroleum jelly, paraffin wax, tar and asphalt

What is the name of the solid pollutant which may form when pentane burns incompletely in air?

The solid pollutant that may form when pentane burns incompletely in air is soot or particulate matter. Soot is a black powdery substance composed primarily of carbon particles that are produced by the incomplete combustion of hydrocarbons like pentane.

Is the most complex organic molecules are hydrocarbon chains with nothing else attached?

No, the most complex organic molecules can have a variety of functional groups attached to hydrocarbon chains, such as alcohols, carboxylic acids, amines, and more. These functional groups can significantly alter the properties and reactivity of the molecules.

Can you put a propane water heater in a mobile home?

Yes, you can install a propane water heater in a mobile home. However, it is important to ensure that the water heater is specifically designed for use in mobile homes and meets all safety requirements. Additionally, proper ventilation and installation by a professional are necessary to ensure safe operation.

How will convert n-propylbromide into iso-propylbromide?

To convert n-propylbromide into iso-propylbromide, you can use a dehydrobromination reaction. By treating n-propylbromide with a strong base such as sodium hydroxide or potassium tert-butoxide, the hydrogen atom at the center carbon atom of the n-propyl chain can be abstracted, leading to the formation of iso-propylbromide.

Why has the amount of methane produced increased steadily over the past 200 years?

The increase in methane production over the past 200 years is primarily due to human activities such as agriculture (e.g., rice paddies and livestock), fossil fuel extraction and use, and waste management. These activities release methane into the atmosphere, contributing to its rise. Methane is a potent greenhouse gas that traps heat in the atmosphere, leading to global warming and climate change.

Molecular equation for burning methane gas?

The molecular equation for the combustion of methane gas (CH4) in the presence of oxygen (O2) is: CH4 + 2O2 -> CO2 + 2H2O.

Will natural gas stove light if set up for propane?

No, natural gas stoves require a different type of burner and regulator compared to propane stoves. Attempting to use natural gas setup with propane can lead to incomplete combustion and potential safety hazards. It's important to use the appropriate equipment for each type of gas.

Is CO2 a hydrocarbon?

No. A hydrocarbon compound needs hydrogen and carbon. That is why they are called hydrocarbon compounds.

What is the standard thermodynamic value of liquid butane C4H10?

C4H10(g) is about -126 kJ/mol

C4H10(l) is about -147 kJ/mol

Why Cars Be Banned in City Center?

Cars may be banned in city centers to reduce traffic congestion, lower air pollution levels, and create a more pedestrian-friendly environment. This can also encourage the use of public transportation, cycling, and walking as alternative modes of transportation in urban areas.

How many isomers does each of the first five alkanes have?

Methane, ethane and propane don't have isomers (confirmers are possible) , butanes are two n-butane and iso-butane, pentanes are three n-pentane, iso-pentane and neo-pentane.

Are Alkenes isometric with cycloalkanes?

No, alkenes are not isomeric with cycloalkanes. Alkenes are hydrocarbons with a carbon-carbon double bond, while cycloalkanes are hydrocarbons with carbon atoms forming a closed ring structure. Isomers have the same molecular formula but different connectivity of atoms.

What is the full structural formula for CH2-CH2 in ethylene?

The structural formula is best displayed as a diagram, similar to

H_ ..... _H

H_C=C_H or (CH2)(CH2)

In C2H4 (ethane, ethene, ethylene) there is a double carbon bond between CH2 structures.

What are the products of combustion when methanol burns?

incomplete combustion of methane may include ethene and ethyne along with carbon, carbon dioxide and water vapours.

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steam and CO is formed

Do hydrocarbon molecules always contain hydrogen carbon and oxygen atoms?

No.

Hydrocarbon molecules contain hydrogen and carbon atoms.

It is carbohydrate molecules that contain hydrogen, carbon, and oxygen atoms.

How can saturated and unsaturated hydrocarbons be differentiated on the basis of combustion?

Saturated hydrocarbons sometimes burn with smoky flame upon combustion while unsaturated hydrocarbons always burn with non-smoky or blue flame. This is on account of the reason that for the same number of carbon atoms in their molecular formula, saturated hydrocarbons have more number of hydrogen atoms as compared to unsaturated hydrocarbons.