Web30 mrt. 2024 · A burning candle shows both physical and chemical changes. Explain ? Answer: A burning candle produces wax vapours which solidify and form wax again is physical change. At the same time wax on burning produces water vapours and carbon dioxide which escape into the atmosphere which are new substances with new properties. WebAlkane. In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings ), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single. [1] Alkanes have the general chemical formula CnH2n+2.

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Web23 mrt. 2024 · Boiling of water to form water vapour is a physical change. There is only a change in the state of matter and no chemical change has occurred and it is a reversible change. Answered by Varsha 23 Mar, 2024, 11:07: AM Web17 sep. 2024 · Answer and Explanation: Boiling water is not a chemical reaction because in order for a chemical reaction to occur, reactants must combine and their molecules … joe\\u0027s weather blog

Is boiling point a chemical change chemical property physical …

WebYes, boiling water is a chemical reaction. When water reaches its boiling point, the molecules of water (H2O) change from a liquid state to a gas state. This happens when … Web10 aug. 2024 · Boiling is a physical change and molecules are not chemically altered during the process. Is water being heated up a chemical change? During a physical … http://webphysics.iupui.edu/webscience/courses/chem101/chem101/archive/www2archive.html integrity national register criteria