Hydrocarbons

Mixture

The law of conservation of mass supports this conclusion, stating that matter cannot be created or destroyed in a chemical reaction. This means the total mass of the products formed in a reaction must equal the total mass of the reactants.

Difficult to draw here, but let's try to describe:

Three methyl groups (CH3-) and one H- atom bonded to one central C atom, then you'll get something like this:

. . . .H

CH3-C-CH3

. . . .CH3

There are two elements.They are carbon and hydrogen.

The answer is oxygen. Oxygen is an element and its most common form is as O2 , another form or "allotrope" is ozone, O3.

The others are compounds because they contain two or more different elements,

water, H2O

methane, CH4

Carbon dioxide, CO2

No, permanent markers are not soluble in ethanol. Permanent markers use a type of ink that is oil-based or alcohol-based, and ethanol is not a strong enough solvent to dissolve it.

Silver utensils can become tarnished when exposed to sulfur-containing foods like egg yolks. The sulfur in the egg yolk reacts with the silver to create silver sulfide, resulting in the tarnished appearance. To prevent tarnishing, it is best to avoid prolonged contact between silver utensils and sulfur-containing foods.

The radius of a cylinder can be calculated using the formula r = √(V / (π * h)), where r is the radius, V is the volume, and h is the height. Given the length of the tank as 10 feet, the radius could be calculated if the volume of the tank is provided as well.

Yes, hydrocarbons can be heated to high temperatures in a process called pyrolysis. This can break down the hydrocarbons into simpler chemical compounds like alkenes and alkynes. This process is commonly used in the petrochemical industry to produce fuels and other chemicals.

No, I've never seen one yet without ethanol.

The density of methane at 20 degrees Celsius is approximately 0.656 kg/m³, and at 120 degrees Celsius, it is around 0.333 kg/m³. As temperature increases, the density of methane decreases due to the expansion of gas molecules.

Graphite.

You might have come across experiments using a pencil to complete a simple circuit to check if a bulb glows and you might have observed that it does.

The graphite in the lead of the pencil is what helps conduct electricity.

The hydrocarbon methane consists of a carbon atom bonded to four hydrogen atoms arranged in a tetrahedral shape. That its, the bonds to the hydrogen atoms point to the corners of a triangular pyramid. Use the link below to see an image that should help lock it in.

Typically, a 30 lb propane tank can last between 18-22 hours when used at a medium setting. However, actual service life can vary depending on the specific usage and conditions of use. Regular maintenance and inspections can also affect the tank's lifespan.

The atomic mass unit (amu) of propene (C3H6) is calculated by adding the atomic masses of the constituent elements: carbon (C) has an atomic mass of about 12.01 amu, and hydrogen (H) has an atomic mass of about 1.01 amu. Therefore, the calculated amu of propene is approximately (3 * 12.01) + (6 * 1.01) = 42.08 amu.

I would be verycareful playing about with gas heaters without the appropriate knowledge. different types of gas heaters have different hardware associated with them. You run a definite risk of blowing your self or worse your family to kingdom come.

The temperature of liquid butane sprayed into the air will rapidly decrease as it expands and evaporates, causing it to cool down. This process is known as evaporative cooling, where the liquid absorbs heat from the surroundings in order to transform into a gas.

A liquid refrigerant tank is used to store refrigerants that are used in air conditioning and refrigeration systems. These tanks are designed to handle specific refrigerants and are typically used in industrial and commercial settings.

A propane tank, on the other hand, is used to store propane gas, which is commonly used for heating, cooking, and as a fuel source for vehicles. Propane tanks are typically used in residential, commercial, and outdoor settings.

If the system is gas tight and the unit is "functioning correctly", the main reason for odor is the supply tank is either old and low on fuel, or it can be newer but has been filled by a supplier that pumped out old tanks recently. The odorant is an additive and will tend to boil out of the fuel and collect at the bottom of the tank over many years of use so when the level gets low it is more pungent.

Alkenes have pi bonds that are readily available to react because the strength of a pi bond isn't as strong as a sigma bond. Pi electrons will attack the nucleophile to form the respective carbocation. Alkanes only contain sigma bonds and have no pi electrons to attack a nucleophile. In order for an alkane to become a strong enough nucleophile it must not be sterically hindered (primary carbons prefered to tertiary) and most likely deprotenated by a very strong base ( likely stronger than sodium amide ).

Yes, a propane pilot light produces as much carbon dioxide per hour as a human being does per hour. Both human respiration and burning propane release carbon dioxide as a byproduct of the combustion process.

380

However, this figure is quite approximate as gasoline expands with temperature. A gallon of gasoline weighs around 6 pounds (US) but can approach 5 pounds in extreme heat. (Buying gasoline in the summer in Phoenix or Houston gives you less energy per dollar than you are paying for.)

Psst! Come in close for this one. There is a secret here.

Natural gas, that stuff the utility company pumps into your home, with which you heat the house, water, and cook. That is primarily methane, essentially the same stuff as the stink that comes from manure piles, and is locked in the sea bed. That stuff that the Greenies were complaining about a few years ago was adding to global warming (cow flatuence).

In short, yes, methane is a very renewable resource.

The plus and minus symbols are used to represent positive and negative charges, respectively. In the case of electrons, the minus sign indicates that electrons have a negative charge. This convention helps distinguish between different types of charges in physics and chemistry.