# What is the coefficient of #"O"_2# when the equation #"Mg"("ClO"_3)_2(s) -> "MgCl"_2(s)+"O"_2(g)# is balanced correctly using the smallest whole number coefficients?

This is how the imbalanced chemical equation describing the decomposition reaction looks.

You now understand that one magnesium chlorate formula unit contains

At this point, you will have

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When the equation "Mg"("ClO"_3)_2(s) -> "MgCl"_2(s)+"O"_2(g) is correctly balanced using the smallest whole number coefficients, the coefficient of "O"_2 is 3.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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