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Is a burning candle a reversible or non reversible change?
Burning a candle is a non-reversible change because once the wax is melted and the wick is burnt, it cannot be undone to return the candle to its original state. The chemical composition of the wax and wick is changed permanently.
Why burning of candle is a physical and chemical change?
CHEMICAL
Is candle wicks burning a version of chemical change?
Yes, the burning of a candle wick is a chemical change because it involves a chemical reaction between the wick, wax, and oxygen in the air to produce light and heat, along with byproducts like carbon dioxide and water vapor. This process is irreversible and results in the formation of new substances.
Why does a candle have a wick?
The wick acts as a fuel delivery system for the flame. When the wick is lit, the heat from the flame melts the wax around it, which is then drawn up the wick via capillary action to be burned.
What is the physical and chemical change that occurs when a birthday candle is lit on a cake?
There are multiple physical changes and chemical changes that occur when a candle burns. One physical change is that the candle melts back into liquid wax. One chemical change is flame burning on the wick.
Is the wick of a burning candle part of the chemical reaction?
Yes, the wick is also burned.
When the wick burns and the candle melts is it a chemical or physical change?
it is a chemical change
Is lighting a chemical change?
Yes. While act of melting wax is a physical change, because you can remould it, the wax is actually what is primarily burned as fuel. You cannot unburn the wick nor the consumed wax. Remember, if it can be redone, it is probably physical and vice versa.The wick of a candle is used to light it and is used as a medium for burning the wax. As the wax is heated, it is soaked into the burning wick. As the fire burns the wax on the wick, more melted wax is absorbed into by the wick. As the wax burns down, so does the wick.
Is a burning candle a reversible or non reversible change?
Burning a candle is a non-reversible change because once the wax is melted and the wick is burnt, it cannot be undone to return the candle to its original state. The chemical composition of the wax and wick is changed permanently.
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.
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 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
Why burning of candle is a physical and chemical change?
CHEMICAL
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.
Is candle wicks burning a version of chemical change?
Yes, the burning of a candle wick is a chemical change because it involves a chemical reaction between the wick, wax, and oxygen in the air to produce light and heat, along with byproducts like carbon dioxide and water vapor. This process is irreversible and results in the formation of new substances.
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!
Is the wick part of the chemical reaction if aluminum is placed between the liquid and the wick?
No.
