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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
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 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.
Name three signs of a chemical change that occur as a log burn in a fireplace?
1) heat is evolved 2) it is quite difficult to react 3) new compounds are formed while others react point 3 is the most important as a chemical change is one in which new compounds are formed.
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 in a fire is a physical change taking place?
yes
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.
How do you know a chemical change takes place when a log burns?
Burning is a chemical process: the nature of the initial material is changed.
A popsicle melting is physical or chemical change?
Melting is a physical change.
Is cutting a stack of wood from a log a physical or chemical change?
Do the logs change from wood to some other substance? No, so it has to be a physical 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.
How is a burnt log and a frozen ice cube a chemical change?
freezing an ice cube is actually a physical change, and a burnt log is a chemical change because it is a different substance than it was initially (whatever you do you can't make a burnt log a regular non-burned log again).
