Chemical Reactions Remediation Assignment

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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 a subscript in a chemical formula indicate?

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A subscript indicates the number of atoms of the element in a molecule. For example, in H2O, the '2' indicates there are two hydrogen atoms.

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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.

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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 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 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.

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What is the difference between a reactant and a product?

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A reactant is a substance that undergoes a chemical change in a reaction, while a product is a substance formed as a result of that reaction.

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What is the role of coefficients in a chemical equation?

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Coefficients indicate the number of molecules or moles of a substance involved in a chemical reaction.

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What is an example of a combustion reaction?

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An example of a combustion reaction is the burning of methane: CH4 + 2O2 → CO2 + 2H2O.

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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.