Balancing K + O2 → K2O

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How to Balance:

K + O2 → K2O

Word equation: Potassium + Oxygen gas → Potassium oxide

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

Balancing Strategies: In this equation we have potassium and oxygen gas combining to form potassium oxide. This is a combination reaction.

To balance the equation, the first thing to do is to change the coefficient in front of K2O if and and to balance the oxygen atoms.






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.

Video:




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