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Chemical Reactions and Equations
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01/09/2021 8:12 pm
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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, which 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?
(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?
1 Answer
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01/09/2021 8:13 pm
(a) Sodium, Na.
(b) Sodium hydroxide
solution (NaOH solution), Alkaline.
(c) Hydrogen, H2
(d) 2Na + 2H2O → 2NaOH + H2
(e) Exothermic.