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Chemical change, because it is irreversible. The chemical composition of the substance actually changes.
A physical change is a change of state, like water to ice. There, H20 is still H20.
Guido Larkin
Otis Rolfson
Physical deary physical or it could be chemical we shall never know
Wiki User
∙ 9y agoThe burning part of the story is a chemical change. When the ashes fall down or the gasses blow away, those are physical changes.
Wiki User
∙ 11y agochemical change
Wiki User
∙ 12y agoAll burning reactions are chemical.
Wiki User
∙ 14y agoChemical
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Which is not a physical change hitting a log with an axe cutting a log burning a log or hammering a spike through a log?
Burning the log is a chemical change. All of the others are physical changes.
Why does burning a log in the fireplace involve a chemical reaction while sawing a log in half does not?
Because burning a log in a fireplace involves a chemical change and sawing a log in half only reguires a physical change.
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 burning log chemical change?
Yes.
Is a burning log a mixture?
A log is a mixture regardless of whether it is burning.
Is burning logs a physical change?
No. Burning a log is a chemical change since the fire turns the wood into ash, water vapor, carbon dioxide, and elemental carbon.
When a log burns is it a physical or chemical change?
It is a chemical change. A physical change to the log would be, for example, cutting the log in two. When it burns, it turns into CO2 and H2O, so it can't be turned back into a log.
Is cutting a stack of wood from a log a chemical change?
No, it is a physical change. If you think about cutting the wood, the pieces will be smaller than the log, but they will have all of the same properties as they did when they were put together. An example of a chemical change is burning the wood. The act of burning it would be a chemical change since it is converting the wood into carbon and water vapor.
When a log rots is it a chemical or physical change?
chemical
Is it a physical change when a log is burnt?
no. it is a chemical change.
Is splitting a log with an axe a physical or chemical change?
physical
A popsicle melting is physical or chemical change?
Melting is a physical change.
