chemistry/stoichiometry/balancing/ How to BalanceMg(NO3)2 = MgO + NO2 + O2

How to Balance Magnesium nitrate → Magnesuim oxide + Nitrogen dioxide + Oxygen gas

How to Balance: Mg(NO3)2 → MgO + NO2 + O2

Type of Chemical Reaction: This is a decomposition reaction.

Word Equation: Magnesium nitrate → Magnesuim oxide + Nitrogen dioxide + Oxygen gas

Balancing Strategies: This is a more challenging reaction, mostly because you have a number oxygen is on the product side of the equation. And their spread out in the MgO, NO2, and O2.

Be sure you count the oxygen atoms on the product side accurately. You should have five.
For a complete explanation, watch:

About Balancing Chemical Equations

When balancing chemical equations our goal is to have the same number of each type of atom on both sides of the equation.

Only change the coefficients (these are the numbers in front substances).
Coefficients are the numbers in front of the molecule.
Never change the subscripts (the small numbers after elements).
Coefficients are the numbers in front of the molecule.

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