Question

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How to balance a chemical reaction? Explain with few examples.
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Answer 1

Answer:

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$\sf\green{\odot}$ When you balance a chemical equation, you change coefficients. You never change subscripts. A coefficient is a whole number multiplier. To balance a chemical equation, you add these whole number multipliers (coefficients) to make sure that there are the same number of atoms on each side of the arrow.

For example: 2Mg + O → 2Mg + O

Reactants = 2 atoms of magnesium and 2 atoms of oxygen

Product = 2 Magnesium Oxide

Reasons for balancing chemical equation:

Law of conservation of matter states that matter is neither created nor destroyed during a chemical reaction.

It is true only if the number of atoms on both sides is equal, because otherwise there will be addition or subtraction of atoms.

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Answer 2

$\huge\mathcal{\fcolorbox{lime}{black}{\orange{ᴀɴꜱᴡᴇʀ}}}$

⊙ When you balance a chemical equation, you change coefficients. You never change subscripts. A coefficient is a whole number multiplier. To balance a chemical equation, you add these whole number multipliers (coefficients) to make sure that there are the same number of atoms on each side of the arrow.

For example: 2Mg + O → 2Mg + O

Reactants = 2 atoms of magnesium and 2 atoms of oxygen

Product = 2 Magnesium Oxide

Reasons for balancing chemical equation:

Law of conservation of matter states that matter is neither created nor destroyed during a chemical reaction.

It is true only if the number of atoms on both sides is equal, because otherwise there will be addition or subtraction of atoms.

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