Balancing Equations and Reaction Types

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What is a single replacement reaction?

Back

A single replacement reaction is a type of chemical reaction where one element replaces another element in a compound. For example: A + BC → AC + B.

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What is a synthesis reaction?

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A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product. For example: A + B → AB.

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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. For example: AB → A + B.

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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 two compounds exchange ions or bonds to form two new compounds. For example: AB + CD → AD + CB.

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How do you balance a chemical equation?

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To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What are coefficients in a chemical equation?

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Coefficients are the numbers placed before the compounds in a chemical equation to indicate the number of molecules or moles of each substance involved in the reaction.

Front

What is the balanced equation for the reaction of magnesium and hydrochloric acid?

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The balanced equation is: 1 Mg + 2 HCl → 1 MgCl2 + 1 H2.

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What is the balanced equation for the reaction of aluminum and hydrochloric acid?

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The balanced equation is: 2 Al + 6 HCl → 3 H2 + 2 AlCl3.

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What is the significance of balancing chemical equations?

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Balancing chemical equations is important because it reflects the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction.

Front

What is the product of the synthesis reaction between silicon and sulfur?

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The product of the synthesis reaction 4Si + S8 → 2Si2S4 is silicon sulfide.