Chemical Equations

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What is a chemical equation?

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A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

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What does it mean to balance a chemical equation?

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Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.

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What are coefficients in a chemical equation?

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

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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.

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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 displacement reaction?

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

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What is a double displacement reaction?

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A double displacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds.

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How do you identify a synthesis reaction?

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A synthesis reaction can be identified by the general form A + B → AB, where two reactants combine to form one product.

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How do you identify a decomposition reaction?

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A decomposition reaction can be identified by the general form AB → A + B, where one reactant breaks down into two or more products.

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What is the law of conservation of mass?

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The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.