Balancing MgO + H2O → Mg(OH)2

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How to Balance:

MgO + H2O → Mg(OH)2

Word equation: Magnesium oxide + Water → Magnesium hydroxide

Type of Chemical Reaction: For this reaction we have a combination reaction.

Balancing Strategies: In this combination reaction the MgO and H2O come together to from Magnesium hydroxide. That's way it's called a combination reaction.

Be sure to count all of the oxygen atoms on the reactant (left) side of the equation. There is an O atom in both MgO and one in H2O.






Essential Resources

For a complete explanation, watch:

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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