Science, asked by r3itikaPriya4sel, 1 year ago

Give one example of combination reaction which is also exothermic

Answers

Answered by Fatimakincsem
216
In a combination reaction, two compounds react to form a new substance. In almost all cases, combination reaction is also an exothermic reaction.

Some combination reaction can be the combustion reaction or many more.

However, when Barium reacts with fluorine, it forms Barium Flouride which is highly an exothermic reaction.

Answered by Suryavardhan1
272
HEY!!

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⚫Combination reaction are those in which atoms or molecules combine to form the product.

⚫Combinations reactions are mostly exothermic. 

⚫For example:-

Magnesium oxide combines with carbon dioxide to form magnesium carbonate with the evolution of heat, as thisreaction is an exothermic reaction. 

▶▶ MgO + CO2→ Mg(CO3)2  -------------∆H=−ve

⚫Calcium oxide (quick lime) reacts with water to produce calcium hydroxide and enormous amount of heat. 
                                                         ▶▶CaO + H2O → Ca(OH)2 + heat
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