Question

translate the following in to chemical equation .hydrogen gas combines with nitrogen to form ammonia.

Answer 1

Hydrogen and nitrogen react to form ammonia

Hydrogen = H2

Nitrogen = N2

Ammonia = NH3

reaction will be

H2 + N2 -----> NH3

Balancing the chemical equation

3 H2 + N2 ------> 2 NH3

their physical state -

3 H2 (g) + N2 (g) ------> 2 NH3 (g)

Way to translate the chemical equation

i) Identify the elements that are reacting.

ii) Identify the product that form.

iii) Write the equation.

iv) Balance the equation.

v) Finally write Its physical state.

Answer 2

$\fbox {Answer}$

Translation of given elements  into chemical equation

Elements  :-

Hydrogen

Nitrogen

They both react to form Ammonia

The formula  of ammonia is NH3

Skeletal equation :-

H2 +N2 ------> NH3

Balance  the equation  :-

LHS - H - 2 (no.of atoms )

LHS - N - 2

RHS - N -1

RHS - H3

The number of atoms in LHS must be equal  to RHS

first let's balance Nitrogen by multiplying RHS with 2

H2 + N2 --------> 2NH3

Now

LHS - H -2

LHS - N - 2

RHS - N - 2

RHS - H - 6

"N " Is balanced , "H" should be balanced

It can be balanced by multplying LHS - H with 3 so that it become 6

3H2 + N2 -----> 2NH3

LHS - H - 6

LHS - N -2

RHS -N -2

RHS - H -6

All the atoms in LHS and RHS are balanced

Balanced equation :-

》  $\fbox {3H2(g) + N2(g)-> 2NH3(g}$

Refer the attachment for better understanding

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THINGS TO KNOW :-

》Skeletal equation  :- a equation which is unstable without balanced but gives information  about the symbols of elements in it.

》In writing  an equation , we must take care of balancing the number of atoms in LHS and RHS.