yes it will be a chemical reaction..as the head of the match stick is being oxidized to burn. so here the oxidation reaction will take place.
It is an example for a combustion reaction. The matchstick contains sulfur and carbon. Therefore two of the products would be sulfur dioxide and carbon dioxide.
It is a physical change because it is evaporation. Physical changes can be undone. If it was a chemical reaction it would be permanent like burning wood.
It would be a chemical change because it is burning. Like a newspaper on fire.
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.
Heating S in a closed environment where it reacts with nothing would be physical but burning S in an open environment it will react with O and is therefore chemical.
Burning is a chemical reaction (oxidation).
Yes, chemical reaction.
Burning of a matchstick.
Burning toast would be a chemical change. The bread would be changed into carbon and the reaction can not be reversed.
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
It is an example for a combustion reaction. The matchstick contains sulfur and carbon. Therefore two of the products would be sulfur dioxide and carbon dioxide.
A chemical change that gives off heat. Burning paper would be an example.
It is a physical change because it is evaporation. Physical changes can be undone. If it was a chemical reaction it would be permanent like burning wood.
It would be a chemical change because it is burning. Like a newspaper on fire.
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.
Bleaching is a chemical reaction.
Heating S in a closed environment where it reacts with nothing would be physical but burning S in an open environment it will react with O and is therefore chemical.