Balancing Chemical Equations

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, following the law of conservation of mass.

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What does the coefficient in a chemical equation represent?

Back

The coefficient indicates the number of molecules or moles of a substance involved in the reaction.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure the same number of each type of atom on both sides.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

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What is the product of the reaction: @@2KClO_3 ightarrow @@?

Back

Front

How many oxygen atoms are in the product of the reaction @@2KClO_3 ightarrow 2KCl + 3O_2@@?

Back

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What is the balanced form of the equation: @@Na + Cl_2 ightarrow NaCl@@?

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The balanced equation is @@2Na + Cl_2 ightarrow 2NaCl@@.

Front

What is the significance of subscripts in a chemical formula?

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Subscripts indicate the number of atoms of each element in a molecule.

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Back

There are 4 nitrogen atoms.

Front

What is the balanced equation for the reaction of lithium and chlorine?

Back

The balanced equation is @@2Li + Cl_2 ightarrow 2LiCl@@.