Flashcard 8 - Chemistry

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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, resulting in a new element and a new 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 elements to form two new compounds.

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What is a combination reaction?

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A combination reaction is a type of chemical reaction where two or more substances combine to form a single product.

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What is the general form of a single-displacement reaction?

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The general form of a single-displacement reaction is A + BC → AC + B, where A is an element and BC is a compound.

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What is the general form of a double-displacement reaction?

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The general form of a double-displacement reaction is AB + CD → AD + CB, where AB and CD are compounds.

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What are the products of the reaction between zinc and hydrochloric acid?

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The products of the reaction between zinc and hydrochloric acid are zinc chloride (ZnCl₂) and hydrogen gas (H₂).

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What are the products of the reaction between barium chloride and sodium sulfate?

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The products of the reaction between barium chloride and sodium sulfate are sodium chloride (NaCl) and barium sulfate (BaSO₄).

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What is the significance of the states of matter in chemical reactions?

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The states of matter (solid, liquid, gas, aqueous) indicate the physical form of the reactants and products, which can affect the reaction conditions and outcomes.

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What is the role of water in combination reactions?

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In combination reactions, water can act as a solvent or a reactant, facilitating the formation of new compounds.

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

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A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances with different properties.