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 for a chemical equation to be balanced?

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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.

Front

What is the reactivity series?

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The reactivity series is a list of metals arranged in order of decreasing reactivity, used to predict how metals will react with other substances.

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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 reactants combine to form a single 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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What are signs that a chemical change has occurred?

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Signs of a chemical change include color change, gas production (bubbling), temperature change, and the formation of a precipitate.

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What is the formula for sodium oxide?

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The formula for sodium oxide is Na2O.

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What is the formula for sodium phosphate?

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The formula for sodium phosphate is Na3PO4.