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What kind of chemical change can you see when a candle burnes?
When a candle burns, a chemical change known as combustion occurs. The heat from the flame is used to vaporize the wax, which then reacts with oxygen in the air to produce carbon dioxide and water vapor. This chemical reaction releases heat and light, which is what we see as the flame.
How does burning candle affect mass differently than melting a candle?
When a candle burns, it undergoes a chemical reaction called combustion, where the wax reacts with oxygen to produce carbon dioxide and water vapor. During this process, the candle's mass decreases as some of the wax is converted into gases. On the other hand, when a candle melts, it transitions from solid to liquid state, but its mass remains unchanged as no chemical reaction occurs.
What is the chemical change called in a lit candle?
The chemical change in a lit candle is called combustion. Combustion is a rapid chemical reaction between oxygen in the air and the fuel (in this case, the wax in the candle) that produces heat, light, and carbon dioxide.
when a candle is lit it undergoes a chemical change?
That is correct, a candle (or the material of which it is composed, which is usually paraffin) undergoes a chemical change when it burns.
Is burning candle getting shorter physical or chemical change?
Burning a candle is a chemical change because the wax undergoes a chemical reaction with oxygen in the air to form new substances like carbon dioxide and water. This process results in the candle getting shorter as it burns.
When the wick burns and the candle melts is it a chemical or physical change?
it is a chemical change
Is melting wax physical property?
Melting candle wax is a chemical change. Why? Because when you cook or burn candle wax it melts so it is a chemical change.
Is a candle melting a physical change or a chemical change?
It is a physical change because when it melts it is still a candle just a melted one
Is candle wax melting physical property?
Melting candle wax is a chemical change. Why? Because when you cook or burn candle wax it melts so it is a chemical change.
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.
How does a candle change physically?
As a candle burns, the candle becomes smaller as the wax melts.
How does a candle get smaller and smaller?
The flame burns the wax which melts smaller and smaller. Therefore the candle melts 'til there is nothing left.
Which source of energy does a candle use?
A candle primarily uses chemical energy stored in the wax. When the candle is lit, the heat from the flame melts the wax, which is then drawn up the wick and vaporized, releasing heat and light energy in the process.
What is the chemical reaction when you burn a candle?
When a candle burns the reactions that occur are both chemical and physical. Chemical reaction is when substances are mixed together to create a different material. A physical reaction is when there is a change in the appearance of the substance. For example when water turns to ice, and when chocolate melts. The chemical reaction that happens when a candle burns is when the oxygen combines with the paraffin. When this happens, this makes carbon dioxide, water and other materials. When the wax reacts with the oxygen it gives off light and heat. The more oxygen that reacts with the candle when it burns, the brighter and hotter it is. The physical reaction that occurs is when the candle wax melts. When the energy (light and heat) inside of the candle is released it helps to melt the candle.
What happens when a candle is burnt?
It is black and melts
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.
What are the advantages of using candle melts instead of candles for room fragrances?
Candle melts are preferred over standard candles for room fragrances due to the ability to mix and match scents. Candle melts also tend to be cheaper when compared to regular candles.
