Types, Balance, Reading Rxns

Front

What is a Decomposition Reaction?

Back

A chemical reaction where one compound breaks down into two or more simpler products. Example: @@2H_2O ightarrow 2H_2 + O_2@@.

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What is a Synthesis Reaction?

Back

A chemical reaction where two or more simple substances combine to form a more complex product. Example: @@2H_2 + O_2 ightarrow 2H_2O@@.

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What is a Single Replacement Reaction?

Back

A reaction where one element replaces another in a compound. Example: @@Zn + CuSO_4 ightarrow ZnSO_4 + Cu@@.

Front

What is a Double Replacement Reaction?

Back

A reaction where the anions and cations of two different compounds switch places, forming two new compounds. Example: @@AgNO_3 + NaCl ightarrow AgCl + NaNO_3@@.

Front

What does the arrow (→) in a chemical equation represent?

Back

It indicates the direction of the reaction, meaning 'yields' or 'produces'.

Front

What is the Law of Conservation of Mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Front

How do you balance a chemical equation?

Back

By ensuring that the number of atoms of each element is the same on both sides of the equation.

Front

What is a Reactant?

Back

A substance that undergoes a chemical change in a reaction.

Front

What is a Product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.