Question

give few examples of combination reactions chemicals​

Answer 1

na + o2 gives na2o

mg + o2 gives mgo

cao + h2o gives ca(oh)2

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Answer 2

Type Example

a) Between elements C + O2 → CO2 Carbon completely burnt in oxygen yields carbon dioxide

b) Between compounds CaO + H2O → Ca(OH)2 Calcium oxide (lime) combined with water gives calcium hydroxide (slaked lime)

c) Between elements and compounds 2CO + O2 → 2CO2 Oxygen combines with carbon monoxide, and carbon dioxide is forme