2006-09-01 19:55:13 · 15 answers · asked by Pulli A 1 in Science & Mathematics ➔ Chemistry
chemical change, because the compounds are changed during the process
unsaturated hydrocarbon + hydrogen --> saturated hydrocarbon
2006-09-01 20:11:52 · answer #1 · answered by arifin ceper 4 · 1⤊ 0⤋
It is a chemical change since the Hydrogen attacks the double bonds between carbons in the oil, and can not be reversed.
If you are referring to a vegetable oil, hydrogenation will change the fat from liquid to solid, from a saturated fat to a partially saturated fat (Trans fat), which was a great idea for the food industry, but terrible for people' s health.
2006-09-02 05:44:36 · answer #2 · answered by antvelarde 2 · 0⤊ 0⤋
It's a chemical change because you are adding extra hydrogen atoms to the oil and therefore making a change that cannot be reversed without altering the strucutre of the oil.
2006-09-01 20:19:33 · answer #3 · answered by cman 3 · 1⤊ 0⤋
A physical change describes a change in the state of a compound. (ie going from a solid to liquid to gas.
A chemical change descirbes a change in the formula of the compound. Hydrogenation of an oil reduces double or tripple bonds with H atoms. Therefore the molecular formula of the comound chaneges and it is a chemical change.
2006-09-01 20:08:54 · answer #4 · answered by Rob S 1 · 1⤊ 1⤋
Yes dear its a chemical chang , as whole formula is changed during hydrogenation.By hydrogenation one bond breaks between carbon-carbonand two new bonds are formed between hydrogen and carbons.As one bond is formed between one carbon and second bond is formed between second carbon and a second hydrogen atom. The process is also called hydrogenation of olifens.And also as saturation of unsaturated compounds. In this process the Nickle metal is used as a catalyst.
2006-09-01 21:09:38 · answer #5 · answered by mamoon 1 · 0⤊ 0⤋
In hydrogenation, new bond formation is there in between carbon & hydrogen.
So, its a Chemical change.
2006-09-01 20:32:29 · answer #6 · answered by hawai_whale 1 · 1⤊ 0⤋
chemical change,there is double bond betwen the carbon atoms in vegetable oil and it undergoes addition reaction with hydrogen and becomes a solid substance.
2006-09-02 02:40:00 · answer #7 · answered by Anonymous · 0⤊ 0⤋
chemical change.there is double bond betwen the two carbon atoms in vegetable oil so it undergoes addition reaction with hydrogen and becomes solid
2006-09-02 02:40:14 · answer #8 · answered by abhishek j 1 · 0⤊ 0⤋
A veg is a plant or part of a grow used as food
2017-03-10 08:56:42 · answer #9 · answered by ? 3 · 0⤊ 0⤋
Both are good for you, each fruit/vegetable has different vitamins. And so as more variety, as better. Vegetables have generally less sugar than fruits.
2017-02-18 09:38:26 · answer #10 · answered by ? 4 · 0⤊ 0⤋