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What is the chemical change called in a lit candle?
The chemical change in a lit candle is called combustion. Combustion is a rapid chemical reaction between oxygen in the air and the fuel (in this case, the wax in the candle) that produces heat, light, and carbon dioxide.
What is the melting candle wax that is dripping down the side of the candle an example?
The melting candle wax dripping down the side of the candle is an example of a physical change. This occurs when the solid wax is heated and transitions into a liquid state due to the heat from the flame.
A melting candle demonstrates which reaction?
A melting candle is an example of a physical change, not a chemical reaction. The process involves a solid candle turning into liquid wax due to the application of heat, with no change in the chemical composition of the wax molecules.
Why is burning of candle a exothermic reaction?
Because exothermic change releases energy.
What is the chemical change when a candle is alight?
When a candle is lit, the wax (hydrocarbons) in the candle reacts with oxygen in the air through combustion to produce carbon dioxide and water vapor. This chemical reaction releases heat and light energy, making the candle burn.
Why does the water rise in the candle experiment?
The water rises in the candle experiment because the heat from the candle causes the air inside the container to expand, pushing some of the air out. As the air cools down, it contracts, creating a lower pressure inside the container. This lower pressure causes the water to rise up into the container to equalize the pressure.
How does a candle look like it is burning inside a glass of water?
When a candle is placed inside a glass of water, the water absorbs the heat produced by the flame. This heat causes the water to evaporate and rise above the flame, creating the illusion that the candle is burning inside the water. In reality, the candle is burning above the water level.
Why cant you change wax into a candle?
You can, but you need a mould, and heat.
Is a candle melting chemical or physical?
The melting of a candle is a physical change. It involves a change in state from solid to liquid due to the absorption of heat energy, without any change in the chemical composition of the candle wax.
What kinds of energy are needed in this investigation to change the state of matter of the candle?
The energy needed to change the state of matter of a candle is primarily in the form of heat energy. When the candle is lit, the heat energy from the flame melts the candle wax, causing it to change from a solid to a liquid state. Further heating vaporizes the liquid wax, transforming it into gaseous wax molecules that combine with oxygen to produce light and heat energy.
Give an example of a chemical change that produces light and heat?
you fart on a candle....
What energy is stored in the wax of a candle?
It is potential energy inside the candle and wick and then made into light and heat energy by combustion
What is the chemical change called in a lit candle?
The chemical change in a lit candle is called combustion. Combustion is a rapid chemical reaction between oxygen in the air and the fuel (in this case, the wax in the candle) that produces heat, light, and carbon dioxide.
What is the melting candle wax that is dripping down the side of the candle an example?
The melting candle wax dripping down the side of the candle is an example of a physical change. This occurs when the solid wax is heated and transitions into a liquid state due to the heat from the flame.
What creates heat inside the earth?
pressure from the mantel.
Why does the water level rise when a bell jar is on top of a candle?
The candle heats the air inside the bell jar, causing it to expand and push the water level down. When the candle goes out, the air cools and contracts, creating a lower pressure inside the bell jar. This lower pressure causes the water to rise to equalize the pressure inside and outside the bell jar.
A melting candle demonstrates which reaction?
A melting candle is an example of a physical change, not a chemical reaction. The process involves a solid candle turning into liquid wax due to the application of heat, with no change in the chemical composition of the wax molecules.
