Question

Describe the relative reactivity of following elements with water (3M)
1. magnesium
2. calcium
3. sodium
Is Balancing the chemical eq is necessary ​

Answer 1

Answer

1) Mg + H2O -- MgO + H2

2) Ca + H2O -- Ca(OH)2 +H2

3) Na + H2O -- NaOH + H2

It is necessary to balance chemical equation to obey the law of conservation of mass.

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Answer 2

Answer:

Mg + h2o = Mgo + h2...

Ca + h20 = Ca(oh)2 + h2..

Na + h2o = Naoh + h2 ...

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