What chemical reactions happen while a candle is burning?

The heat of the flame vaporizes the liquid wax (turns it into a hot gas), and starts to break down the hydrocarbons into molecules of hydrogen and carbon. These vaporized molecules are drawn up into the flame, where they react with oxygen from the air to create heat, light, water vapor (H2O) and carbon dioxide (CO2).

What chemical changes occur when a candle is lit?

Chemical Changes in Burning Candle: When you light the candle, the wax present near the wick will melt. Wick absorbs the liquid wax. The liquid wax vaporizes due the heat produced by the flame. This wax vapor near to flame burns and gives new substances like Carbon Dioxide, Carbon soot, water vapours, heat and light.

What are the chemical properties of candle?

Candle wax is typically composed of long-chain hydrocarbons (containing only hydrogen and carbon), such as C27H56 . When Hydrocarbons are burned in an excess of oxygen, carbon dioxide and water are the products. This is a combustion reaction.

What are the 5 chemical reactions?

Classify reactions as synthesis, decomposition, single replacement, double replacement, or combustion.

What chemicals are in white candles?

Most white candles are simply made of paraffin, a waxy petroleum compound that is naturally white.

What are the physical and chemical properties of a burning candle?

Physical Changes: On heating, candle wax gets melted. Since it again turns into solid wax on cooling. So, the melting of wax and vapourisation of melted wax are physical changes. Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.

What are 10 examples of a chemical reaction?

Here’s ten examples of chemical changes:

• Combustion.
• Oxidation (rusting)
• Decomposition or fermentation.
• Cooking an egg.
• Photosynthesis.
• Reacting acids and bases together.
• Chemical batteries.
• Digestion.