![]() ![]() ![]() ![]() Summary Oil companies break large hydrocabon molecules down into smaller, more useful hydrocarbons.Ĭracking takes place at high temperatures as the large molecules pass over a catalyst. They are less likely to clog up your arteries with the fatty deposits that can cause heart disease. Decane Ing Equation Keygen Crack Serialīackuptrans iphone whatsapp transfer keygen crack serial generator 1. They are a healthier option than the saturated fats we eat in butter. Some of them are called polyunsaturates because their molecules have more than one double bond. Have you heard of the unsaturated oils we use to make margarine These contain double bonds in their carbon chains too. So while the alkanes are saturated hydrocarbons, the alkenes are unsaturated hydrocarbons. When all the carboncarbon bonds are single, a molecule is said to be saturated. ![]() Lets look at the structures of the first three members of the alkenes, shown in Fig.2 below.ĪtomAn atom is the smallest particle of an element that can still be defined as that element. Its name is ethene and it is the smallest member of the family of hydrocarbons called the alkenes. MoleculeA molecule is a group of two or more atoms bonded together. The fractions that provide us with fuel for cars are in great demand.īut we just dont use so much of the heavier fractions, so chemists have found ways to meet the demand for petrol by producing this from the heavier hydrocarbons.ĬatalystA catalyst is a substance that alters (usually speeds up) the rate of a chemical reaction, but remains chemically unchanged itself at the end of the reaction.Ĭatalyst, and they break down into smaller molecules.Ī catalyst is a substance that speeds up a chemical reaction but remains chemically unchanged itself at the end of the reaction.) Look at an example of cracking below: C 10H 22(g) C 8H 18(g) C 2H 4(g) Cracking is an example of a thermal decomposition reaction (in this case of an. Write a balanced symbol equation for this reaction.Ĭrude oilCrude oil is a liquid formed from tiny sea creatures and plants that died millions of years ago.Īs you might expect, we do not need as much of some fractions as others. Decane Ing Equation Keygen Crack SerialĬracking of a hydrocarbon produces a mixture of saturated and unsaturated compounds.Įxplain the meaning of the words underlined.Ĭracking decane can produce a mixture of butane and propene in the ratio 1:2 respectively. ![]()
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