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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.
What else can I help you with?
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.
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.
Why does burning a log in the fireplace involve a chemical reaction while sawing a log in half does not?
Burning a log in the fireplace involves a chemical reaction because it undergoes combustion, reacting with oxygen to produce heat, light, and new chemical compounds like carbon dioxide and water vapor. Sawing a log in half is a physical change where the log is simply being cut into smaller pieces without any chemical reactions occurring.
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.
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?
Splitting a log with an axe is a physical change. The log is being physically divided into smaller pieces, but its fundamental chemical composition remains the same.
Is cutting a log into boards a physical property chemical property chemical change or physical change?
It is a physical change, because the wood is still wood but it is in a different form
When a log burns is it a physical or chemical change?
When a log burns, it undergoes a chemical change because the molecules in the log are breaking apart and rearranging to form new substances like ash, smoke, and gases. This process involves the combustion of the wood as it reacts with oxygen in the air to produce heat and light.
