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When a matchstick burned?
When a matchstick burns, it undergoes a chemical reaction called combustion. The heat produced ignites the match head, which then releases energy in the form of light and heat. This process also consumes oxygen from the air to sustain the flame.
Is burning a matchstick a reversible change?
The burning of the match is irreversible because it cannot be undone. If the candle is made of regular wax and not the dripless kind, you can take the melted wax and make another candle out of it , just without a wick, which would have been destroyed in the first melting, making it an irreversible change as well.
Mixing magnesium and the product of burning magnesium with hydrochloric acid is it a physical or chemical change?
Mixing magnesium and the product of burning magnesium with hydrochloric acid would lead to a chemical change. The reaction between magnesium oxide (product of burning magnesium) and hydrochloric acid would produce magnesium chloride and water, showing a chemical reaction taking place due to the formation of new substances with different properties.
What is an example of oxidation water evaporating sugar melting paper burning or all of the above?
An example of oxidation would be paper burning because it involves a chemical reaction where paper combines with oxygen in the air to produce heat and light. Water evaporating and sugar melting are physical changes, not chemical reactions involving oxidation.
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.
What evidence of chemical reaction would be seen when burning a match?
Burning is a chemical reaction (oxidation).
An example of a physical change would be?
Burning of a matchstick.
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.
When a matchstick burned?
When a matchstick burns, it undergoes a chemical reaction called combustion. The heat produced ignites the match head, which then releases energy in the form of light and heat. This process also consumes oxygen from the air to sustain the flame.
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
Is a burning match a example of physical energy into chemical energy?
Yes, a burning match is an example of chemical energy being released through a chemical reaction. When the match is ignited, the chemical bonds in the matchstick are broken down, releasing stored energy in the form of heat and light.
Is burning a matchstick a reversible change?
The burning of the match is irreversible because it cannot be undone. If the candle is made of regular wax and not the dripless kind, you can take the melted wax and make another candle out of it , just without a wick, which would have been destroyed in the first melting, making it an irreversible change as well.
What phrase best describes a exothermic chemical reaction?
A chemical change that gives off heat. Burning paper would be an example.
Mixing magnesium and the product of burning magnesium with hydrochloric acid is it a physical or chemical change?
Mixing magnesium and the product of burning magnesium with hydrochloric acid would lead to a chemical change. The reaction between magnesium oxide (product of burning magnesium) and hydrochloric acid would produce magnesium chloride and water, showing a chemical reaction taking place due to the formation of new substances with different properties.
What reaction occurred when burning a match stick?
The gas will explode in presence of oxygen! (and your match blown out, and hopefully you're not!)D.T.T.A.H.Only if brought in contact with H2 gas WITHOUT ANY O2 it would distiguish through absence of oxygen, but in practice this is IMPOSSIBLE to do (oxygen being present all the time as long as your match is burning, how else would it burn? see?)
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.
Would burning diesel fuel be a chemical change?
Yes, burning diesel fuel is a chemical change because it involves a chemical reaction where the fuel reacts with oxygen in the air to produce heat, light, and new chemical compounds like carbon dioxide and water vapor. The original diesel fuel is transformed into different substances during combustion.
