Question

hWrite the balanced chemical equations for the following word equations: (3 marks)
1. Magnesium + oxygen --› Magnesium oxide
2. Nitrogen + hydrogen --› ammonia
3. Sodium + chlorine --› Sodium chloride plss ans​

Answer 1

We have to balance three equation given in the question.

$\sf1. Magnesium + oxygen \longrightarrow Magnesium \: oxide$

$\sf \implies Mg + O_2 \longrightarrow MgO$

Now by balancing the equation we get :-

$\sf 2Mg + O_2 \longrightarrow 2MgO$

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$\sf2.Nitrogen + hydrogen \longrightarrow ammonia$

$\sf \implies N_2+ H_2 \longrightarrow NH_3$

Now by balancing the equation we get :-

$\sf \implies N_2+ 3 H_2 \longrightarrow 2NH_3$

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$\sf3. Sodium + chlorine \longrightarrow Sodium \: chloride$

$\sf \implies Na+ Cl_2 \longrightarrow NaCl$

Now by balancing the equation we get :-

$\sf \implies 2 Na+ Cl_2 \longrightarrow 2NaCl$

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Additional Information :-

We know that all chemical reaction/equation must obey :- The law of conservation of mass and The law of constant proportions. This means that equal number of atoms should be there in both sides ( i.e on reactant side and product side same number of atoms must be there). We generally add stoichiometric coefficient to both the sides ( reactant and product ) to make the equation balance equation.

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Answer 2

Hey There

Here's The Answer

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1• Magnesium + Oxygen ➝ Magnesium Oxide

Mg + O₂ ➝ 2 MgO

2• Nitrogen + Hydrogen ➝ Ammonia

N₂ + 3 H₂ ➝ 2 NH₃

3• Sodium + Chlorine ➝ Sodium Chloride

Na + Cl₂ ➝ 2 NaCl

Hope It Helps.