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What is a substance formed in a chemical reaction?
a substance that is formed in a chemical reaction is called a product=)After a chemical reaction, new chemicals are formed. For an example:-NaOH + HCl = NaCl + HOH(H2O)Chemical substances are formed in chemical reactions.
Why burning candle is chemical change?
When a candle burns, the wax undergoes a chemical reaction with oxygen in the air to produce heat, light, carbon dioxide, and water vapor. This process involves breaking and forming chemical bonds, resulting in a new substance being created. Therefore, burning a candle is considered a chemical change.
What is burning candle it is physically Chang or chamically?
Burning a candle involves a chemical change, as the wax is being oxidized by the oxygen in the air to produce heat, light, carbon dioxide, and water vapor. This process is irreversible and results in the formation of new substances, which is characteristic of a chemical change.
How does burning become a chemical change?
Burning is a chemical change because it involves a chemical reaction between the fuel and the oxygen in the air, resulting in the release of heat, light, and new substances like ash and smoke. During burning, the original substances are transformed into new substances with different properties, indicating a chemical change has occurred.
Is the burning of a candle reversible or irreversible?
It's irreversible
Is burning a candle wick a physical property?
No, burning a candle wick is a chemical change, not a physical property. Physical properties describe characteristics that can be observed without changing the substance's identity, while chemical changes involve the rearrangement of atoms and result in a new substance being formed.
What is a substance formed in a chemical reaction?
a substance that is formed in a chemical reaction is called a product=)After a chemical reaction, new chemicals are formed. For an example:-NaOH + HCl = NaCl + HOH(H2O)Chemical substances are formed in chemical reactions.
Is burning ammonium dichromate a chemical or a physical change?
chemical because a new substance is formed
Is a candle burns 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.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.
Draw a burning candle and mark there is a reversible reaction?
I'm not able to draw pictures, but I can describe it for you. You can draw a candle with a flame burning at the wick. To mark a reversible reaction, you can draw an arrow going in both directions from the candle, symbolizing the reversible combustion reaction where wax and oxygen combine to produce carbon dioxide and water vapor.
Why are metal alloys an example of a physical change and not a chemical change?
They are a physical change because it is not like burning where a new substance is being formed.
Is a candle burning chemical change?
Yes, burning a candle is a chemical change. New chemical compounds are being formed as the reaction continues. The paraffin in the candle is a hydrocarbon chain, and it is "breaking down" chemically using oxygen from the air to form (idealy) carbon dioxide and water. But there are also physical changes that take place at the same time. Phenomena during the candle burning: - melting (physical phenomenon) - evaporation (may be considered a chemical but also a physical phenomenon) - oxydation - reaction with oxygen, burning (chemical phenomenon) - thermal decomposition (chemical phenomenon)
Is burning candle getting shorter physical or chemical change?
Burning a candle is a chemical change because the wax undergoes a chemical reaction with oxygen in the air to form new substances like carbon dioxide and water. This process results in the candle getting shorter as it burns.
Why burning candle is chemical change?
When a candle burns, the wax undergoes a chemical reaction with oxygen in the air to produce heat, light, carbon dioxide, and water vapor. This process involves breaking and forming chemical bonds, resulting in a new substance being created. Therefore, burning a candle is considered a chemical change.
What is burning candle it is physically Chang or chamically?
Burning a candle involves a chemical change, as the wax is being oxidized by the oxygen in the air to produce heat, light, carbon dioxide, and water vapor. This process is irreversible and results in the formation of new substances, which is characteristic of a chemical change.
Which of the followings forms a new substance?
Which of the following forms a new substance?
What is a physical reactions?
Answer:A physical reaction is a reaction whereby a new substance is not formed and is reversible.For example,folding of paper. Unlike a physical reaction,a chemical reaction is a process whereby a new substance is formed and is not reversible.For example,burning of paper.
