The metal M reacts vigorously with water to form a solution S and a gas G . The solution is turned red litmus to blue where as gas G which is lighter than air burns with a pop sound . Metal M has a low melting point and it is used as coolant in nuclear reactor
a) what is metal M
b) what is solution S? Is it acidic or alkaline
c) what is gas G
d) write a balanced chemical equation for the reaction which takes place when metal M reacts with water
e) is this reaction exothermic or endothermic

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Solution

(a) Sodium, Na
(b) Sodium Hydroxide solution (NaOH solution), Alkaline
(c) Hydrogen, H2
(d) 2Na(s) + 2H2O(l) -------------> 2NaOH(aq) + H2(g) + Heat Energy
(e) Exothermic

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The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, Whcih is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.

(a) What is metal M ?

(b) What is solution S ? Is it acidic or alkaline ?

(d) Write a balanced chemical equation for the reaction which takes when metal M reacts with water.

(e) Is this reaction exothermic or endothermic ?

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(a) Sodium, Na (b) Sodium Hydroxide solution (NaOH solution), Alkaline (c) Hydrogen, H2 (d) 2Na(s) + 2H2O(l) -------------> 2NaOH(aq) + H2(g) + Heat Energy (e) Exothermic

(a) Sodium, Na
(b) Sodium Hydroxide solution (NaOH solution), Alkaline
(c) Hydrogen, H2
(d) 2Na(s) + 2H2O(l) -------------> 2NaOH(aq) + H2(g) + Heat Energy
(e) Exothermic