Double Replacement Reactions

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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 precipitate?

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A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

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How can you determine if a chemical reaction has occurred?

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You can determine if a chemical reaction has occurred by observing changes such as the formation of a precipitate, gas production, or color change.

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What is the solubility chart used for?

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The solubility chart is used to determine the solubility of various compounds in water, helping to predict whether a precipitate will form in a reaction.

Front

What are the products of the reaction between Na(NO3) and CaF2?

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The products are NaF and Ca(NO3)2.

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What is the balanced equation for the reaction of P4 and O2 to form P2O3?

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The balanced equation is P4 + 3 O2 → 2 P2O3.

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What is the significance of balancing chemical equations?

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Balancing chemical equations is important because it ensures that the law of conservation of mass is followed, meaning the number of atoms of each element is the same on both sides of the equation.

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What is the general form of a double replacement reaction?

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The general form is AB + CD → AD + CB, where A and C are cations and B and D are anions.

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What is an example of a double replacement reaction?

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An example is: 2 NaCl + Pb(NO3)2 → PbCl2 + 2 NaNO3.

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What does it mean for a reaction to not occur?

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A reaction does not occur when the reactants do not produce any new products, often due to the solubility of the products.