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This reaction involves a base (NaOH) and an acid (HCl), so it's a neutralization reaction, which is a special type of double-displacement reaction. Follow this procedure to write balanced molecular equations for double displacement reactions, when you know only the formulas of the reactants:
Once the reaction is ignited by a spark, these hydrocarbons burn to form CO 2 and H 2 O and give off between 45 and 50 kJ of energy per gram of fuel consumed. In the presence of light, or at high temperatures, alkanes react with halogens to form alkyl halides.Reaction with chlorine gives an alkyl chloride.lkenes and Alkynes. Unsaturated hydrocarbons such as alkenes and alkynes are much more reactive than the parent alkanes. They react rapidly with bromine, for example, to add a Br 2 molecule across the C=C double bond. This reaction provides a way to test for alkenes or alkynes.