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Why a burning candle is observed heat is felt above the fame black smoke is seen rising from the wick and wax melts What caused each change?
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Is burning candle getting shorter physical or chemical change?
Burning a candle is a chemical change. It cannot be "unburnt"
Is burning of a candle a periodic change?
YES
Is burning a candle a chemical change or a physical change give reason?
It is both a physical and chemical change. The burning of the wick s chemical while the candle melting being physical.
What is the chemical change when a candle is alight?
Burning of the wick or candle material, thermal dissociation of candle material.
Is it a physical change when a candle changes size by burning?
Yes, because the candle wax isn't actually burning, just melting
What is burning candle it is physically Chang or chamically?
Burning a candle is a chemical change, as is burning anything.
Is burning candle getting shorter physical or chemical change?
Burning a candle is a chemical change. It cannot be "unburnt"
Burning a candle is a change?
Yes.
Is burning of a candle a periodic change?
YES
Is burning a candle a chemical change or a physical change give reason?
It is both a physical and chemical change. The burning of the wick s chemical while the candle melting being physical.
What is the chemical change when a candle is alight?
Burning of the wick or candle material, thermal dissociation of candle material.
Is a candle burning reversible or irreversible?
irreversible change.
Is it a physical change when a candle changes size by burning?
Yes, because the candle wax isn't actually burning, just melting
What are the steps to prove that a burning of a candle is physical as well as a chemical change?
1. Melting of the candle is a physical change. 2. Burning and thermal decomposition are chemical changes.
Is a candle burning a physical change?
It is actually both. The burning of the wick involves a chemical change. The physical change is the wax.
How we know a chemical change has occurred when burning a candle?
Burning is a chemical reaction, an oxydation.
How could you check that mass of the candle change during burning?
Put the candle on a technical balance.
