yes.
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!
No. You must not confuse the PROCESS of converting some chemical products to others, with the RESULT. The PROCESS of converting wood and oxygen to smoke is a chemical change. The SMOKE itself is not.
When the bread is left in the toaster for too long and becomes black, it undergoes a chemical change. This process, known as combustion, alters the composition of the bread, resulting in new substances such as carbon and smoke. The burning of the bread releases smoke into the kitchen, which is also indicative of a chemical reaction occurring. In contrast, a physical change would not alter the chemical composition of the substance.
The production of smoke from something burning would be a sign of a chemical change. Broken pieces, change in shape, or change in state are all physical changes.
Burning wood is a chemical change - although, like most chemical changes it is accompanied by a physical change. Usually we reserve the term physical changes for things like erosion, melting, or evaporation where no change in composition occurs.
The black smoke produced from a burning candle is a physical change. This is because the change in appearance (from no smoke to black smoke) does not involve a change in the chemical composition of the candle wax or the oxygen in the air. The black smoke is primarily made up of tiny carbon particles that result from incomplete combustion of the candle wax.
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!
It is chemica changel because it produces gas and the smoke it produce is one of the evidence that it is really a chemical change, also you can't put it back to its beginning state.
Phenomena during the candle burning:- melting- evaporation- oxydation- thermal decompositionIt is a chemical change because gas is use as a chemical. It also has friction when your trying to light it. The match is similar.Burning a candle is a chemical change because the wick is being changed into two things: ash and smoke. It is no longer a wick, and it's properties have changed.because oxygen is reacting with the flame...
It is a chemical change because you can't put it back together exactly the way it was before. Yes, a chemical change is taking place. Even simple cooking produces chemical changes. The smoke and the temperature change are good signs a chemical change is taking place
No. You must not confuse the PROCESS of converting some chemical products to others, with the RESULT. The PROCESS of converting wood and oxygen to smoke is a chemical change. The SMOKE itself is not.
When the bread is left in the toaster for too long and becomes black, it undergoes a chemical change. This process, known as combustion, alters the composition of the bread, resulting in new substances such as carbon and smoke. The burning of the bread releases smoke into the kitchen, which is also indicative of a chemical reaction occurring. In contrast, a physical change would not alter the chemical composition of the substance.
Yes, burning a candle is a chemical reaction. The easiest way to tell if something is a chemical reaction is if heat or light are given of, a new substance is formed, or a colour change happens. Chemical changes are irreversible.Yes, whenever a candle burns, it is a combustion reaction between the carbon compounds of the wick and wax of the candle and of oxygen in the air. These compounds burn to create carbon dioxide and water, and also a few smaller carbon compounds, which is evident as the smoke rising occasionally from the flame. The flame you see and the heat you feel rising off of the burning wick is the evidence of an exothermic chemical reaction.Yes, burning a candle is a chemical reaction. The easiest way to tell if something is a chemical reaction is if heat or light are given of, a new substance is formed, or a colour change happens. Chemical changes are irreversible.
The smoke produced by a vehicle is a combination of physical and chemical changes. The combustion of fuel in the engine is a chemical change that produces gases, while the dispersal of these gases into the air involves physical changes such as condensation and diffusion.
A candle when it burns lets out smoke.
When you relight a candle from the smoke, it is because the smoke contains unburned carbon particles that can reignite when exposed to a flame.
Candle Smoke - 1998 was released on: USA: September 1998