Balancing and Classifying Chemical Equations

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What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.

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What does it mean to classify a chemical reaction?

Back

Classifying a chemical reaction involves identifying the type of reaction (e.g., synthesis, decomposition, single replacement, double replacement, combustion) based on the reactants and products.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.

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How do you determine if a chemical equation is balanced?

Back

To determine if a chemical equation is balanced, count the number of atoms of each element on both sides of the equation and ensure they are equal.

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What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.

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What is a decomposition reaction?

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A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.

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What is a single replacement reaction?

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A single replacement reaction is a type of chemical reaction where one element replaces another element in a compound.

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What is a double replacement reaction?

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A double replacement reaction is a type of chemical reaction where the anions and cations of two different compounds exchange places, forming two new compounds.

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What is combustion?

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Combustion is a chemical reaction that occurs when a substance reacts rapidly with oxygen, producing heat and light, typically resulting in the formation of carbon dioxide and water.

Front

How do you balance the equation: ___ NO₂ → ___ O₂ + N₂?

Back

The balanced equation is 2 NO₂ → 2 O₂ + N₂.