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What is a chemical change in a plastic soda bottle A. Burning B. Freezing C. Cutting D. Crushing?
A. Burning. Burning a plastic soda bottle would involve a chemical change because the plastic molecules are being broken down and rearranged into different chemical substances. Freezing, cutting, and crushing would not result in a chemical change, as the chemical composition of the plastic would remain the same.
Is burning of branches physical change?
No, it's a chemical reaction with O2.In physical changes the chemical formula remains the same; like ice (H2O) and water (H2O). Burning wood is something like cellulose + O2 --> CO2 + H2O
Is candle burning physical change?
Physical change means change physically while chemical change means change chemically or change in chemical properties.Like if you would drop a chip of zinc in sulphuric acid it will its color will be changed which is no doubt a physical change.But,also its properties are changed as it will be transformed into zinc sulphate from simple zinc,thus it also undergoes a chemical change. Now,with your question,the candle breaks but the candle remains the candle,so,its not a chemical change but a physical change only.Hope it helps!
Would burning a pound of coal be an example of a chemical change?
Burning of (any amount of ) coal is a chemical change.
Is tearing cloth a physical or chemical change?
It is PHYSICAL CHANGE because it does not change into another substance and it does not have chemical reaction, it can be sewn back to return to its original form.
Is burning toast a physical change?
Burning toast would be a chemical change. The bread would be changed into carbon and the reaction can not be reversed.
Is burning of leaves physical change or chemical change?
Burning leaves would be a chemical change because once the leaves are burnt, you can't turn the ashes back into leaves.
What is a chemical change in a plastic soda bottle A. Burning B. Freezing C. Cutting D. Crushing?
A. Burning. Burning a plastic soda bottle would involve a chemical change because the plastic molecules are being broken down and rearranged into different chemical substances. Freezing, cutting, and crushing would not result in a chemical change, as the chemical composition of the plastic would remain the same.
Is flammability of a substance is physical or chemical change?
Stating that something is flammable is stating a chemical property. But the actual burning would be a chemical change.
Is the burning of phosphorus physical or chemical change?
Burning of anything is a chemical change. Combustion (burning) is a chemical reaction; it is simply where oxygen is added to, for example, an element, and turns it into an oxide. Burning phosphorus would result in phosphorus oxide. P + O2 --> P4010
How does chemical change happens in photosynthesis?
it happens when •A physical change is reversible, a chemical change is not.•the freezing of water would be a physical change because it can be reversed, whereas the burning of wood is a chemical change - you can't.
Is burning a tree a physical or chemical change?
No. It must go through a chemical reaction to be a chemical change. In example, burning a candle: Is it still the same thing before and after you lit it? yes. So if in the process of burning the leaf it went through a chemical reaction, then it would a chemical change. Since only its appearance changes, not its chemical structure on the molecular level, it is only a physical change.
Is burning toast a physical or a chemical change?
A chemical change.
Is burning of branches physical change?
No, it's a chemical reaction with O2.In physical changes the chemical formula remains the same; like ice (H2O) and water (H2O). Burning wood is something like cellulose + O2 --> CO2 + H2O
Is candle burning physical change?
Physical change means change physically while chemical change means change chemically or change in chemical properties.Like if you would drop a chip of zinc in sulphuric acid it will its color will be changed which is no doubt a physical change.But,also its properties are changed as it will be transformed into zinc sulphate from simple zinc,thus it also undergoes a chemical change. Now,with your question,the candle breaks but the candle remains the candle,so,its not a chemical change but a physical change only.Hope it helps!
1.What are the examples of chemical change?
A chemical change is a change that cannot be un-done; baking a pie would be a chemical change because you can't UN-BAKE a pie.
Would burning a pound of coal be an example of a chemical change?
Burning of (any amount of ) coal is a chemical change.
