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What else can I help you with?
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.
How do you keep an ice cube from melting in a science fair project?
Use clay,rubber, wax, seaweed and styrofoam
Do solids have a high or low melting point?
That depends on the solid: ice has a very low melting point, lard and butter have low melting points, chocolate has a relatively low melting point, wax has an intermediate melting point, lead has a high melting point, iron has a very high melting point, tungsten has an extremely high melting point.
What physical and chemical changes occur when a wax candle burn?
Some wax burns, and as it does so, chemical changes occurs. Wax converts to CO2, CO, and H2O. That is an exothermic reaction The rest of the wax melts with the increased temperature. That is the physical change.
What is the dependent variable of do colored candles or white candles burn faster?
All else being held constant - the dependent variable is the composition of the chemical(s) used to color the colored candles. Some additives will speed burning because they are themselves flammable. Some will slow burning because they are less flammable. Some will cause the melting point of the wax to be depressed so that the wax melts quicker - and as it melts and drains away, the candle will burn faster. A more critical factor in reality though is that colored candles are usually made with a different composition than white candles to make it easier to color them. Not only do they contain something to give them color - the composition of the wax the color is added to is different as well. Once you change the basic composition of the candle that much it is tough to compare the candles. It becomes like trying to compare burning oak to burning pine. Yeah - they are similar but you really are not burning the same thing and you don't expect them to burn at the same rate. By controlling the composition of the wax, you can make candles burn faster or slower - without respect to what color they are or if they have no color at all (assuming you don't call white a color).
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 a wick necesarry in a burning candle?
Yes that is what burns the melting wax prolongs the burning time by slowly evaporating
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
Temperature of melting wax in celsius?
It depends upon nature of wax, usually wax melts between 40 to 50 Celsius.
Why melting of wax is difference than burning of wax?
Melting doesn't change the composition of a compound (substance).Burning is a chemical reaction, an oxidation - new compounds are formed.
What type of reaction occurs when a candle is burned?
The burning of a candle is a chemical reaction called combustion, which involves the candle wax (a hydrocarbon) reacting with oxygen in the air to produce carbon dioxide, water vapor, and heat. This reaction releases energy in the form of light and heat.
Is there a difference between roller skate wax and skateboard wax?
No
Is there a difference between pectin wax and paraffin wax?
yes
What is the difference between natural wax and paraffin wax?
Mustard!
Is candle wax burning an exaple of an physical change?
Only the melting is physical (can easily be reversed by cooling down) but the actual burning (flame) is a complicated chemical set of reactions.
Is a wax burning a reversible change?
No, burning wax is an irreversible change. When wax is burned, it undergoes a chemical reaction that changes it into different substances (carbon dioxide, water vapor, and heat) that cannot be easily reversed.
Lower the melting point of wax?
To lower the melting point of wax, you can consider adding a small amount of mineral oil or vegetable oil to the wax before melting it. This will decrease the overall melting temperature of the wax. Alternatively, you can mix the wax with a lower melting point wax to create a blend with a reduced melting point.
