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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.
Is burning of a candle a periodic change?
Yes, the burning of a candle is a periodic change because it involves the repeated process of the wax melting, being drawn up the wick, and then being burnt, which occurs in a cyclical manner as long as the candle is lit.
When a candle burns in air which change occurs first-physical or chemical?
chemical change occurs first. because first oxygen help in burning and form carbon-di-oxide which is a chemical change
What is the physical and chemical change that occurs when a birthday candle is lit on a cake?
There are multiple physical changes and chemical changes that occur when a candle burns. One physical change is that the candle melts back into liquid wax. One chemical change is flame burning on the wick.
What physical and chemical changes occur when a wax candle burn?
Some wax burns, and as it does so, chemical changes occurs. Wax converts to CO2, CO, and H2O. That is an exothermic reaction The rest of the wax melts with the increased temperature. That is the physical change.
What kind of chemical change can you see when a candle burnes?
When a candle burns, a chemical change known as combustion occurs. The heat from the flame is used to vaporize the wax, which then reacts with oxygen in the air to produce carbon dioxide and water vapor. This chemical reaction releases heat and light, which is what we see as the flame.
When you use a match to light a candle multiple what type of energy occurs?
Chemical energy in the match is converted to thermal energy, which produces heat to ignite the candle.
What does candle wax react with?
Candle wax typically reacts with oxygen in the air when it is burning, producing heat, light, and carbon dioxide. The chemical reaction that occurs during the burning of candle wax is called combustion.
Does the length change when a Physical change occurs?
Yes, if expansion occurs.
What is the hottest part in a candle?
The hottest part of a candle flame is typically the blue central core where complete combustion occurs. This part of the flame can reach temperatures of around 1400 degrees Celsius.
What change in the water level occurs when you hold Erlenmeyer flask over a candle in a pan of water?
When you hold an Erlenmeyer flask over a candle in a pan of water, the water inside the flask heats up and expands, causing the water level in the flask to rise. This is due to the expansion of the water molecules as they gain thermal energy from the heat source.
What type of reaction occurs when a candle is burned?
The burning of a candle is a chemical reaction called combustion, which involves the candle wax (a hydrocarbon) reacting with oxygen in the air to produce carbon dioxide, water vapor, and heat. This reaction releases energy in the form of light and heat.
