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What is Heating up metal with a flame is that a physical or chemical change?
Wiki User
∙ 6y ago
No, it is a chemical change. The metal oxide formed is a new substance.
Wiki User
∙ 8y ago
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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.
Striking a match chemical or physical?
Physical properties of the match would include thing such as its state, colour, odour, density and solubility. Chemical changes in the match would be such things at its ability to burn and the chemical changes of when the match is lit and there becomes a flame. Hope this helps a bit :)
Is heating a chocolate chemical change?
Yes, burning of a sparkle is a chemical change because once sparkle has changed its form it cannot come into its previous form. For understanding you can also take the example of cooked rice which once cooked cannot be raw again.
What is appearance of a flame that is used for heating?
luminous
What are each of the different coloured flames used for on a Bunsen burner?
Yellow safety flame - Safe becasue you can see it easily and know it is there. Not used for heating because it creates soot.Silent blue flame - Used to for gental heating and is silent and not very visible.Roaring blue flame - Strongest heating setting and is made of two cones. The outside cone is the flame and it is blue , the inside cone is unburned gas that is purple.All credit goes to another user to wrote this on a different conversation.
How can you tell that the burning of a candle causes both physical and chemical change?
By observation: 1. A flame shows that heat is being generated, indicating a chemical change taking place. 2. A physical change would be the solid wax changing to liquid under the flame.
When you put a cold object into flame of candle the object will get covered with soot physical or chemical?
Getting covered with soot would be classified as a physical change rather than a chemical change.
When firework explodes is physical change or chemical change?
Chemical because its made of chemicals like minerals and when the fire on the string hits the minerals then it forms a chemical reaction.
Is the glowing of a platinum wire in a flame a physical or chemical change?
It is a physical change. A physical change involves changing a substance only in its appearance, smell, taste, feel, or sound. A chemical change involves changing what makes up the substance or the way the substance reacts with other substances. When a normal platinum wire is placed over a flame, it glows. This is a physical change because the things that make up the platinum have not been changed, but the appearance has changed.
Is flame retardant a physical or chemical property of matter?
physical
when a candle is alight what is its physical change?
The wax melts and vaporizes, these changes are physical changes caused by te flame. They are a change in state only, and in these no new substance is formed. The chemical change is the combustion of the wax and the wick
Is flame a example of physical change or a chemical change?
Something burning is a chemical change because it is combining with the oxygen in the air. Ex. when you burn sugar you get c02 and water, the reason the water doesnt put out the fire is that the water is released as a gas.
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 gas flame burning a chemical change?
yes
Striking a match chemical or physical?
Physical properties of the match would include thing such as its state, colour, odour, density and solubility. Chemical changes in the match would be such things at its ability to burn and the chemical changes of when the match is lit and there becomes a flame. Hope this helps a bit :)
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 heating a chocolate chemical change?
Yes, burning of a sparkle is a chemical change because once sparkle has changed its form it cannot come into its previous form. For understanding you can also take the example of cooked rice which once cooked cannot be raw again.
