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What type of reaction occurs when a candle is burned?
There are 2; the melting of the candles wax is physical but the wick burning is chemical.
Do different candle wicks affect how fast candles burn?
The rate at which a candle burns has little to do with the wick. It's all about the wax. When a candle is burning, what's actually on fire is the wax. Yes, the wick burns down along with the rest of the candle, but only the top of it is incinerated. The wick acts as, well, a wick. Liquid wax goes into the wick and up along its fibers by capillary action when a candle is burning. You are familiar with capillary action. That's where liquids, or the atoms or molecules of those liquids, climb around along or inside porous materials. Get a little drop of grease on a shirt, and soon there's a spot as big as a saucer,or at least it seems like it. (The size of the spot will be proportional to how much we like the shirt.) That's capillary action. The molten wax climbs up the wick and is burned when a candle is alight. There are different mixes of wax that permit longer burning, but that begets another question.
What happens to the matter of a burning candle?
The matter undergoes a chemical change. The wax and wick react with oxygen to form water vapor, carbon dioxide, carbon monoxide, and soot. Some of the carbon is left behind on the wick.
When a candle burns both physical and chemical changes take place Identify these changes?
the physical change is -the shape of the candle changes,some of the wax becomes liquid to solid. chemical change-the wick is burned *Hi just wanted to say that this person above is wrong...I mean, the wick burning would be a chemical change because it is combustion. They are wrong because the wick doesn't actually burn.The wax is absorbed by the wick which cools it off. Eventually the wick becomes too long and the top of it dries out and falls off into the wax. Fact being, the wax vapor burns. You should do some more individual research for details because there is more. Thanks!
When a candle is burning does that violate the laws of conservation of mass and energy?
No. -- Mass leaves the candle in the form of hot gases and soot, and there's always some of it left in the puddle of melted wax under the candle. -- Oxygen combines with the hydrocarbons in the candle material and the fibers in the wick, releasing chemical energy that leaves the candle in the form of heat and light.
Is a candle burning a physical change?
It is actually both. The burning of the wick involves a chemical change. The physical change is the wax.
What part of a burning candle takes place and physical change?
The melting of the wax is a physical change. The burning the of wick is the chemical change
Is burning a candle a chemical change or a physical change give reason?
It is both a physical and chemical change. The burning of the wick s chemical while the candle melting being physical.
Why does a candle have a wick?
A candle has a wick because without one the lit candle would not burn.
Why is melting of covered candle a physical change while burning of a candle wick a chemical change?
This is because a candle will change its whole form and stay that way, which is a physical outer change. And a candle wick only burns, it doesn't change it's appearance.
What is actually burning on a candle?
The wick. The wax is there to prevent the wick from burning too fast.
What is the difference between melting of candle wax and burning of candle?
Burning a candle is the process in which the wick is burnt. The wax is there to make the wick burn slower in order to let the candle burn for longer. Melting wax is part of the process but not burning the candle itself.
Is the wick of a burning candle part of the chemical reaction?
Yes, the wick is also burned.
Is candle burning physical change?
Physical change means change physically while chemical change means change chemically or change in chemical properties.Like if you would drop a chip of zinc in sulphuric acid it will its color will be changed which is no doubt a physical change.But,also its properties are changed as it will be transformed into zinc sulphate from simple zinc,thus it also undergoes a chemical change. Now,with your question,the candle breaks but the candle remains the candle,so,its not a chemical change but a physical change only.Hope it helps!
What is the chemical change when a candle is alight?
Burning of the wick or candle material, thermal dissociation of candle material.
What type of reaction occurs when a candle is burned?
There are 2; the melting of the candles wax is physical but the wick burning is chemical.
Is a burning candle a physical change?
For the wax, yes. It changes to a liquid and then back to a solid. But some of the wax is also consumed in a chemical change as it oxidizes, along with the burning wick.
