Question

$\large\bf \underline\red{Question}$
Write down the chemical equation of the following chemical reaction and balance them.

1.) Water is formed when hydrogen and oxygen react with each other.

2.) Carbon dioxide gas is formed when carbon is burnt in the abundance (affluence) of air.

3) Carbon monoxide gas is formed when carbon is burnt in the sufficiency of air.

4.) Sodium oxide is formed when sodium reacts with oxygen in the air.

5.) Sulphur dioxide gas is formed when sulphur is burnt in oxygen.


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Answer 1

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1) 2H2(g) + 02(g) → 2H20(l)

2) C+ O2 → CO2 + Heat + Light

3) 2 CO (g) + O2 (g) → 2CO2 (g)

4) 4Na + O2 → 2Na2O

5) S(s) + O2(g) → SO2(g)

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Answer 2

Answer. When carbon burns completely excess of air (oxygen) it forms carbon dioxide. But if there is incomplete combustion, carbon monoxide is formed.