Question

Each metals have it's characteristic reactivity. a) Which gas is formed when sodium reacts with water? b) Write the chemical equation of the reaction between sodium and water? c) What happens when a freshly cut piece of sodium is exposed to air?​

Answer 1

Answer:

a) when metals react with water hydrogen gas is evolved

so when sodium is exposed to water hydrogen gas is evolved

b) 4Na + 2H₂O -----> 2Na₂O + 2H₂ + HEAT

c) sodium is a highly reactive metal and it reacts vigorously when exposed to air or water

when freshly cut sodium metal is exposed to air then it reacts violently with 0₂ and forms sodium oxide along with the evolution of heat

also the sodium metal catches fire while reacting with O₂

Chemical equation :-

4Na + O₂ ------> 2Na₂O + HEAT

Explanation:

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