Candles

Usually oxygen, primarily because it is how fire is made. But for longer, there isn't a possible way to make it burn 'longer' with gas, but more rather use wax and string that are more durable to fire. Or alternatively you can put a plant near the fire (out of burning range) to give the fire as much oxygen as possible.

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The three layers of a candle are the wick, the wax, and the flame. The wick is the string that burns and melts the wax, which is the fuel for the flame. The flame is the result of the combustion of the wax vaporizing as it is heated by the burning wick.

The burnt part of a candle wick is called a "wick trim" or a "candle snuffer." It is the charred portion of the wick that remains after the candle has been burned. It should be trimmed before each use to ensure a clean and efficient burn.

Soft candles typically contain a blend of waxes, such as paraffin, soy, or beeswax, along with fragrance oils or essential oils for scent. Some candles may also contain colorants, stabilizers, and wicks made from cotton or wood.

You can heat the mixture of nails and gravel up with the candle flame. The nails will expand faster than the gravel due to their higher thermal conductivity, making it easier to separate them by picking out the expanded nails.

An unscented candle typically contains paraffin wax or soy wax, a wick made of cotton or hemp, and possibly some additives or colorants. It does not contain any additional fragrance chemicals.

Melting ice is a physical change as it involves a change in state from solid to liquid without changing the chemical composition. Rubbing a marker on paper involves a physical process of transferring ink from the marker to the paper, without any new chemical reactions occurring. Burning a candle is a combustion reaction where the wax reacts with oxygen to produce heat, light, carbon dioxide, and water vapor. Rusting iron is a chemical process where iron reacts with oxygen and moisture in the air to form iron oxide.

During the burning of a candle, the wax (hydrocarbons) undergoes a combustion reaction with oxygen from the air. This reaction produces carbon dioxide, water vapor, heat, and light. The heat melts and vaporizes the wax, while the light comes from the glowing soot particles that are formed during incomplete combustion.

A candle requires oxygen to burn, and when placed in a sealed jar, the oxygen supply is depleted, leading to the candle extinguishing. This happens because the flame consumes the available oxygen, creating a vacuum that eventually snuffs out the flame.

As long as they were all lit at the same time, they would burn for the same amount of time (regardless of the number of candles).

irreversible change.

To remove candle wax from metal, you can place the metal object in the freezer for a few hours until the wax hardens, then gently scrape it off with a butter knife or credit card. Alternatively, you can use a hair dryer to melt the wax and then wipe it away with a paper towel or cloth.

A candle is a natural light source because it is derived from natural materials such as wax and a wick.

Candle fuel is typically called wax. Wax is a solid material that melts when exposed to heat, allowing it to be used as a fuel source for candles. It can be made from various sources, such as beeswax, paraffin, or soy.

No, a candle flame is not a living thing. Living things have the ability to grow, reproduce, respond to stimuli, and maintain homeostasis, qualities that a candle flame does not possess. A candle flame is a result of a chemical reaction between the wax and oxygen, producing light and heat.

The melting of a candle is a reversible change because the solid wax can be cooled and solidified again to form a new candle.

When a candle burns, the wax at the top of the candle melts and turns into liquid, which is then drawn up the wick by capillary action. This liquid wax vaporizes and mixes with oxygen in the air, producing a flame. The heat from the flame melts more wax, sustaining the process and allowing the candle to continue burning.

Different colors in a candle are typically the result of dyes or pigments that are added to the wax during the manufacturing process. These dyes create the vibrant colors we see when the candle is lit.

A roaring flame requires a continuous supply of fuel and air. In the case of a candle, the size and composition of the wick limit how much fuel can be drawn up to the flame. If the wick is too large, it may produce excess soot and smoke instead of a stable flame.

This is an example of the law of conservation of mass. It states that the total mass of substances before a chemical reaction is the same as the total mass of substances after the reaction.

Chemical energy is converted to light and thermal energy.

The water rose in the beaker because as the candle burned, it consumed oxygen in the air inside the beaker. This created a partial vacuum, causing the water to be pushed up into the beaker due to the air pressure outside.

A lighted candle undergoes chemical energy conversion as the wax burns and releases heat and light energy in the form of a flame.

when a candle is lit, the solid wax first melts into liquid.The liquid wax gets drawn up the wick. the liquid wax evaporates when it gets hot enough.

It combines with the oxygen in the air and burns to form carbon in form of black soot, carbon dioxide and water.