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Hydrocarbons

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

2,710 Questions

Pairs of shared electron in methane?

In methane (CH4), each hydrogen atom shares one electron with the carbon atom to form a covalent bond. This creates four pairs of shared electrons between carbon and hydrogen atoms in methane, resulting in a stable tetrahedral molecular structure.

What is the observation between bromine and propene?

Bromine water is a dilute solution of bromine that is normally orange-brown in colour, but becomes colourless when shaken with an alkene. Alkenes can decolourise bromine water, while alkanes cannot.

What do ozone nitrous oxide methane carbon dioxide and chlorofluorocarbons have in common?

They are all trace gases in the Earth's atmosphere, and they are all greenhouse gases. Not all of them are Man-caused, not all of them are increasing in any given region of the atmosphere, and only one of them is good as a propellant for whipped cream.

Reaction of formaldehyde with potassium permanganate?

Benzaldehyde reacts with pottasium permanganate to generate benzoic acid (oxidation). Basic cnditions are required for the action of pottasium permanganate so sodium carbonate is used. But this gives sodium salt of benzoic acid which is soluble in water. To retrieve benzoic acid which is insoluble in water we use HCl.

Can humans breathe methane?

Because it's mainly due to how the feed they eat is digested. The digestive processes both from the rumen and from the cecum encourage byproduct which includes methane and carbon dioxide. Since these gases don't have anything to contribute to the health of the animal, they are expelled by belching and flatulence. And methane isn't just from cows: it also comes from humans, pigs, deer, horses, sheep, wolves, lions, etc. It also comes from deep in the earth and is expelled into the atmosphere.

How many grams of propane react to produce 8.00 grams of water?

Assuming that the water is produced by complete combustion of propane, the balanced equation is:

C3H8 + 5 O2 = 3 CO2 + 4 H2O.

The gram molecular mass of propane is three times the gram atomic mass of carbon plus eight times the gram atomic mass of hydrogen = 3(12.011) + 8(1.008) = 44.097, and the gram molecular mass of water is the gram atomic mass of oxygen plus twice the gram atomic mass of hydrogen = 15.999 + 2(1.008) = 18.015. The balanced reaction equation shows that four molecules of water are produced for each molecule of propane, so that the ratio of grams of propane reacted to grams of water produced is 44.097/(4 X 18.015) = 0.61191, to the justified number of significant digits. Therefore, the amount of propane required to produce 8.00 grams of water = 8.00(0.61191) = 4.90 grams to the clearly justified number of significant digits, matching the three significant digits given for 8.00, or 4.895 grams, where the last digit is depressed because it may well not be accurate within + 1

What are the classifications of ethane?

Ethane is classified as an alkane, which is a type of hydrocarbon with single covalent bonds in its carbon chain. It is also a saturated hydrocarbon because it contains only single bonds between its carbon atoms.

What is the name of the compound LiNo2?

Li3P is an unstable compound. It would be named lithium phosphide, or if using the prefix notation, it would be called trilithium phosphide.

What is difference between electrophile and Lewis acids?

When something is described as being electrophilic, it is something that is attracted toward negative charges.

An ion is simply an atom that has an unequal ratio of protons to electrons, which gives it an external charge.

What is the IUPAC name for the hydrocarbon C14H30?

The IUPAC name for the hydrocarbon C14H30 is tetradecane. It is a straight-chain alkane with 14 carbon atoms.

Structural formula of heptane?

The chemical equation for Heptane is C2H6..

Wrong Answer.

Hepta means 7. Therefore, Heptane has 7 carbon atoms. Since alkanes have the general formula of CnH2n+2, if n is 7, 2n + 2 is 16.

Therefore, Heptane has the formula of C7H16.

1 Hydrocarbons are usually non-polar What does that mean about the sharing of electrons in the hydrogen to carbon bond?

Being non-polar means there is an equal sharing of electrons between hydrogen and carbon in the bond. This sharing of electrons is symmetrical and does not result in any significant electrical charge separation within the molecule.

What is a simple test to distinguish between an aliphatic compound and an aromatic compound?

Huckels rule. 4n + 2 whereby n is any integer for example 1,2,3 etc. Aromatic compounds will obey huckels rule:-

(4 x (1)) + 2 = 6

(4 x (2)) + 2 = 10

(4 x (3)) + 2 = 14

Taking benzene as an example...is it aromatic?

Is a six membered ring with 3 double bonds, so 6pi electrons thus obeys huckels rule and is aromatic. Negative charges also count as 2pi electrons and positive charges on a molecule are ignored entirely.

If a hydrocarbon C5H10 behaves as saturated compound then it must be a?

If a hydrocarbon C5H10 behaves as a saturated compound, it must be a cyclopentane. Saturated compounds contain only single bonds, and in the case of C5H10, cyclopentane is the only possible saturated hydrocarbon solution.

Are methane emissions responsible for the greenhouse effect?

Greenhouse gases trap heat in the atmosphere.

The popular view is that the atmosphere has some sort of layer of carbon dioxide "up there" that reflects heat back down to Earth rather than letting it escape to space. That would be like the glass on a greenhouse trapping warm air in while letting the sunlight through to increase the heat. In a greenhouse the sunlight warms the benches and floor, the warm objects heat the air, the air is trapped by the double layer of insulating glass.

It does not happen that way.

Sunlight comes in and warms the Earth's surface. It warms the gases in the air too, at least some of them with a bond size that gets excited by sunlight. These special gases are greenhouse gases (carbon dioxide, methane, water vapour and a few others). They are mixed evenly through all of the atmosphere (not in layers). When the gases are warm they share their heat with all their gas molecule neighbours and heat the atmosphere generally.

The effect is more like wet sand in a microwave. Microwaves do not heat sand. They do heat water. When you microwave wet sand, the water heats up - might even turn to steam. The hot water warms the sand.

What happens to the atomic number of sodium when it loses one electron?

Atomic number is the number of protons in the nucleus of an atom. Therefore, sodium's atomic number is always 11, even if it loses 1 electron. However, when a sodium atom loses 1 electron, it will form an ion with a 1+ charge.

Is propene unsaturated?

Yes, propene is unsaturated because it contains a carbon-carbon double bond, which is a form of unsaturation. This double bond is what distinguishes propene from a saturated hydrocarbon like propane, which contains only single bonds between carbon atoms.

Do Polyatomic ions always contain oxygen?

In most of the cases it is true but SCN- , Transition metals complex ions and some organic poly atomic ions do not contain oxygen.

What is the state of ethane at room temperature?

Ethane is a colorless, odorless gas at room temperature and standard pressure. It is a hydrocarbon with the chemical formula C2H6.

Butane and isobutane are examples of?

Butane and isobutane are examples of hydrocarbons known as alkanes. They have similar chemical compositions but different structures due to the branching of carbon atoms in isobutane. Both are commonly used as fuels in various applications such as lighters and camping stoves.

How far should a land fill site where methane gas and carbon monoxide is present be from a residential area?

That is difficult to answer, as it always depends on the concentrations. Since both methane and carbon monoxide are gases it is unlikely that the will linger for long on the land fill site.

Here some guidelines towards measured concentration and their acceptability:

CO

Occupational exposure limits

TLV: 25 ppm as TWA BEI issued (ACGIH 2006).

MAK: 30 ppm 35 mg/m³ Peak limitation category: II(1); Pregnancy risk group: B; (DFG 2006).

CH4

TLV: (aliphatic hydrocarbons gases, Alkane C1-C4) 1000 ppm (as TWA) (ACGIH 2005).

MAK not established.

The more dangerous of the two is clearly CO (carbon monoxide). CH4 is lighter than air and will proceed straight up to the sky.

During digestion cows produce methane gas a carbon-containing compound The methane gets released into the atmosphere How might this process affect the global environment?

The release of methane gas from cows contributes to the greenhouse effect, leading to an increase in global temperatures and climate change. Methane is a potent greenhouse gas, trapping heat in the atmosphere at a much higher rate than carbon dioxide. This process can lead to more severe weather patterns, rising sea levels, and disruptions to ecosystems.

What is the benefit of using ethane?

It is continuous (so it runs all the time).

Very few workers are needed so that reduces costs.

It is a relatively fast process.

The ethanol comes out pure and no treatment is needed to get rid of impurities.

Does cold affect propane?

Yes and no. Propane is very nonreactive by itself (except when burned in oxygen). The temperature that propane is at doesn't effect it's properties. Also, propane has a very low freezing point (-188°C) so it won't freeze when it gets cold.

However, when using propane for a stove, etc., cold can affect how well it works. A propane tank is full of liquid propane under pressure. When it is being used, the liquid first has to vaporize to a gas, where it can then be burned. Because it takes a lot of heat for the liquid to vaporize into a gas, cold weather can slow down the flow. If this is a problem, the propane tank can be placed in a bucket of lukewarm water so that heat is available for the propane to vaporize.