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What physical and chemical changes occur when a wax candle burn?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoWhen the wax candle burns, the wax which melts can be changed to its solid state on cooling, which is a physical change.
The burning of wax releases some gases which cannot be reversible. Hence it is a chemical change.
Wiki User
∙ 14y agowhen wax of the candle burns it is a physical change but when wick of the candle burns it is a chemical chang
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Mass does not change during a chemical change how about for a physical change?
Physical changes are like cutting paper. The mass does not change. Chemical changes do not change total mass either. If you put a candle in a sealed container so that you may measure the total mass of the candle and the air before burning, then light the candle electrically but keep everything sealed, the total mass after burning will still be the same. But if you measure only the candle, then its mass has changed. So the mass of one single 'ingredient' will change during a chemical change.
List the physical and chemical changes that occur when gasoline enters an automobile engine and burns?
it is a chemical change because it causing the fuel to burn
What are two kinds of changes that occur in matter?
The two types of changes in matter that it goes through is physical change and chemical change... trust me, we are learning this at school.
When a chocolate bar melt in the sun is that a physical change or a chemical change?
Physical, Since only the property of the chocolate didn't change, after it melted, it still is chocolate
Can you give me some notes about weathering?
There are two types of weathering: chemical and physical. Chemical weathering is said to occur when the chemical compounds of rocks are changed. Physical weathering happens due to wind, rain, or other natural occurrences.
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.
Which occurs more often on earth physical changes or chemical changes?
what involves both chemical and physical change on earths surface
Mass does not change during a chemical change how about for a physical change?
Physical changes are like cutting paper. The mass does not change. Chemical changes do not change total mass either. If you put a candle in a sealed container so that you may measure the total mass of the candle and the air before burning, then light the candle electrically but keep everything sealed, the total mass after burning will still be the same. But if you measure only the candle, then its mass has changed. So the mass of one single 'ingredient' will change during a chemical change.
Is boiling potatoes a chemical or physical change?
Physical, because it doesn't change chemical make up it just changes the appearance and texture
Is poor conductor of electricity chemical or physical property?
It is a physical property. Changes that occur in a material without changing the identity of the material are physical changes.
If you mix baking soda vinegar a physical or chemical change?
It is primarily a chemical change. However, physical changes also occur because of the chemical activity.
Why cutting of tree branches is physical change?
Because any chemical changes occur.
What is always involved when physical or chemical changes occur in matter?
Energy is ALWAYS invoved.
Would the burning of a house be a physical change?
Mostly chemical, but physical changes also occur, such as when the windows blow out.
What changes occur when a candle lit?
it changes from a solid to a gas. the colour changes.
Are physical changes chemical reactions?
No, physical changes normally refer to changes other than chemical reactions. If you have a loaf of bread and cut it in half, that is a physical change but not a chemical change. If you eat the bread and digest it, that is a chemical change.
How else are nuclear reactions unlike chemical reactions?
In nuclear reactions the atom itself changes while molecules and/or structural organisation of atoms do in chemical and physical changes.
