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What kind of chemical change can you see when a candle burnes?
the chemical change i see is when the candle melts to a lower level
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.
Why are burning candle and rusting nails examples of chemical change?
Burning candles and the rusting of nails are examples of chemical changes owing to the fact that there are chemical reactions occurring and new chemical compounds are being formed as the reaction continues.When a candle burns, the wax and wick of the candle are undergoing combustion and (ideally) being chemically changed into carbon dioxide and water, which are two completely new chemical substances than were present in the candle. In the case of the nail, iron in the steel alloy from which the nail is made is combining with oxygen to form a chemical compound not present in the nail, namely iron oxide.
Energy flow diagram for a candle?
The wax in the candle contains chemical energy. When you burn the candle the chemical energy is transferred into heat (thermal) and light energy.
Is burning candle getting shorter physical or chemical change?
Burning a candle is a chemical change. It cannot be "unburnt"
When the wick burns and the candle melts is it a chemical or physical change?
it is a chemical change
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.
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
What happens to a candle when it melts?
When a candle melts it gradually loses its shape, and turns into a puddle.
What kind of chemical change can you see when a candle burnes?
the chemical change i see is when the candle melts to a lower level
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 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 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.
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.
What happens when a candle is burnt?
It is black and melts
