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If you chop wood for a fire and then burn the wood you have made both physical and chemical changes.?
Wiki User
∙ 7y ago
Yes, chopping is a physical change: the chemical composition of the molecules inside the wood remains the same. Burning causes the molecules in the wood to react with the air (mostly with the oxygen in the air), and the result is different compounds than before.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThat is correct. Chopping wood is a physical change and burning the wood is a chemical change.
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Classify the burning of natural gases in physical or chemical changes?
chemical b/c anything you burn is a chemical change :) rawr.....
What are the differences between the physical and chemical?
in changes. Physical changes can be reversed. E.g. if you were to melt a block of ice, and then freeze it again, it would to some degree be reversed. This is a physical change. However, if you were to burn a peace of toast, the change would be chemical. Once the toast is burnt you cant get it back.
Is an ability to burn physical or chemical?
It is a chemical property, as it involves a chemical change.
Which type of chemical and physical changes you observe in daily life?
Well a Chemical change means that what ever changes can't change back. For example if u have normal paper then burn it that's a chemical change and that's why a chemical change is so important.
Can chemical reactions have physical changes?
Physical changes do not change the kind of matter or its properties. Ex. cut a piece of paper and you sill have paper. Chemical changes cause the atoms to recombine and form new substances with different properties. Ex. burn wood, it isn't wood anymore, it is ash and smoke and heat energy. ASH wasn't there before burning.
Classify the burning of natural gases in physical or chemical changes?
chemical b/c anything you burn is a chemical change :) rawr.....
What are physical facts about lead?
That is what I wanted to know, this is what i think? Some Physical changes: -You can shape lead -It dislovels Some Chemical changes: -It does NOT burn -It turns into Lead Oxide Those are some but I need help with the rest... and takers? This might also help you... Phyical-You do the change. Chemical-It changes it's self.
Is flammable a chemical properties or physical property?
Flammability is a chemical property because when you burn something there is a chemical reaction, therefore a chemical change will occur.
Is a flammable a chemical or a physical?
Flammable is a chemical property. Flammable means that the substance will burn. Burning or combustion involves chemical changes as the substance is oxidised.
Is an object's ability to burn a physical property?
An objects ability to burn is a chemical property. When you burn something you do not start the fire by changing its appearance so it is a chemical property. Anything that is a physical property is something that changes a substances appearance. A chemical property changes the actual substance.
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 :)
In a candle explain both changes using the big idea of energy?
When a candle is burnt a physical AND chemical change takes place. Its a physical change when the wax is being melted because the chemical structure has not change, meaning it cannot be a chemical change. Its also a chemical change because you are burning the string. When you burn something the chemical structure DOES change, meaning it is a chemical change.
List the physical and chemical changes that occur when gasoline enters an automobile engine and burns?
it is a chemical change because it causing the fuel to burn
What are the differences between the physical and chemical?
in changes. Physical changes can be reversed. E.g. if you were to melt a block of ice, and then freeze it again, it would to some degree be reversed. This is a physical change. However, if you were to burn a peace of toast, the change would be chemical. Once the toast is burnt you cant get it back.
When you burn something is that a chemical or physical change?
depends on what you burn
Is a leaf undergoes a physical or chemical change?
it depends its physical if you cut it and its chemical when you burn it
Is gasoline's ability to burn a chemical or physical change?
Neither - but when it does burn it's a chemical change.
