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How can you tell that a burning piece of wood is chemical change?
Wiki User
∙ 10y ago
Because you can't put it back together. Imagine burning a piece of paper, there is no way that you can get that piece of paper back. Burning that piece of paper was a chemical change because you changed the chemical properties of the paper. Crumpling or cutting the paper doesn't change the molecular structure of the paper, so it is a physical change.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoThe reason that burning is a chemical reaction is because a chemical or element has to be present for something to burn. Oxygen has to be present or something will not burn.
Wiki User
∙ 13y agoAfter burning we don't get the original reactants back.
Wiki User
∙ 10y agowood becomes charcoal, meaning that its components changed. After being burned it won't be made of the same material.
Wiki User
∙ 6y agoAfter burning a substance is decomposed in other substances; this is a chemical reaction.
Wiki User
∙ 6y agoDuring burning a substance is transformed in carbon dioxide and water.
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Does a chemical change occur when a piece of wood is painted?
When you burn wood a chemical change occurs.
How do you know if there is a chemical change?
yo ucan tell if there is a chemical change if there is a temperature change, color change,formattion of gas, precipitate,or a release of gasses
Is the flammability of ether a physical or chemical change?
i have no clue you tell me and stop useing internet use your mind see im so bad at speling im in 12th grade usee your own mind.
How you tell if matter has undergone a chemical change or a physical change?
If a chemical change has occurred, the chemical composition has changed and new products will have formed, different from the reactants. If a physical change has occurred, the chemical composition does not change and no new products will have formed.
Is scrambling an egg a physical or chemical change?
Scrambling an egg is a chemical change. You can tell because chemical changes are irreversible, you cannot change the cooked egg back to a raw egg.
Does a chemical change occur when a piece of wood is painted?
When you burn wood a chemical change occurs.
Whoch of the sign of a chemical change woums you see at a campfire?
There is a few signs of a chemical change that you see in a campfire. You can tell by the color, temperature and burning.
Is burning a log a example of chemical or physical changes?
Although it has physical consequences, burning a log is a chemical change. The molecules of the log react with oxygen to form carbon dioxide, water steam, and many other products. A simple, fairly reliable test to tell the difference between physical and chemical changes is: Can the process be reversed rather easily? If the answer is yes, like dissolving salt in water, it is a physical change; if no, a chemical change.
Is wax melting chemical or physical change?
This is a physical change, not a chemical change! It is because all the wax is still all there as for if it was a chemical change it would be all gone!Physical. Its physical state changed from solid to liquid. It's chemical make up remains the same.Melting wax is a chemical change because a new substance is forming. Trust me im intelligent and we just learned this in science.physical change :)It is a chemical change because it gives off heat even when it is burning. heat is one of the signs that tell whether it is physical or chemical change. The signs are heat , light's ,gas,discolor.Melting was would be a physical change-- no chemical reaction occurs when something melts or boils. A burning candle is a chemical change, both can occur at the same time.
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.
How can you tell chemical change?
The consequence of a chemical change is the modification of the molecular nature.
How can you tell there is a chemical reaction when iron rusts?
Because it is not a physical change it is a chemical change.
How do you know if there is a chemical change?
yo ucan tell if there is a chemical change if there is a temperature change, color change,formattion of gas, precipitate,or a release of gasses
Is melting wax a physical chemical or nuclear change?
This is a physical change, not a chemical change! It is because all the wax is still all there as for if it was a chemical change it would be all gone!Physical. Its physical state changed from solid to liquid. It's chemical make up remains the same.Melting wax is a chemical change because a new substance is forming. Trust me im intelligent and we just learned this in science.physical change :)It is a chemical change because it gives off heat even when it is burning. heat is one of the signs that tell whether it is physical or chemical change. The signs are heat , light's ,gas,discolor.Melting was would be a physical change-- no chemical reaction occurs when something melts or boils. A burning candle is a chemical change, both can occur at the same time.
When a kettle is boiled you can tell it is NOT chemical change because?
the change is easily reversed so it is a physical change not a chemical change
How can you tell that burning wood is an irreversible change?
It disintegrates to ashes.
Can you tell your car is burning oil when you do an oil change?
You can tell this before an oil change. If you see blue smoke coming out the exhaust your engine is burning oil. If you're oil level is low and you have no oil leak your burning oil.
