Yes it is. A chemical change is one in which new products are formed.
When you light a match, combustion occurs, meaning that CO2 and H2O are produced.
Therefore it is a chemical change.
yes. the phosphorus on the match tip oxidizes into phosphorus monoxide
it is a chemical because when you srkike that match it can not come back
Yes, it is a chemical reaction.
chemical change
That is correct, a candle (or the material of which it is composed, which is usually paraffin) undergoes a chemical change when it burns.
The fire is lit. And the parrafi/wax lights easily
It is a physical change because while the apple is cut into smaller pieces, it is still composed of the same materials. If you lit the apple on fire, that would result in a chemical change.
Physical. You're not doing anything to alter the chemical structure of the paper. If you soaked it in ethanol and lit it on fire before crumpling it, that would be a chemical change.
chemical change
Oxidation.
That is correct, a candle (or the material of which it is composed, which is usually paraffin) undergoes a chemical change when it burns.
The fire is lit. And the parrafi/wax lights easily
It is a physical change because while the apple is cut into smaller pieces, it is still composed of the same materials. If you lit the apple on fire, that would result in a chemical change.
Physical. You're not doing anything to alter the chemical structure of the paper. If you soaked it in ethanol and lit it on fire before crumpling it, that would be a chemical change.
combustion...
Because the process of producing the flame is a chemical reaction. The reaction can only exist if there are unused chemicals to fuel the change. Once all the chemicals are used up - the reaction stops.
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.
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 :)
Hmm, well lets see, if it's chemical there's no going back right? You cant make it into what it was, so if a flashbulb goes off, it like, explodes, and you need a new one because you can't use a broken bulb...(duh)... so i guess it's a chemical change . (Sorry for not getting to the point quickly ^-^)
chemical energy