Title: Activity 4.2 Work in pairs or groups
Course: Chemist€ry > Section: 4. REACTION CLASSIFICATION 4.2 Double-replacement reaction

1. Predict the products of this double-replacement equation:

KBr + AgNO_3 → ___________?+  ___________?

Check in Internet if one of the 2 products formed is a solid precipitate. If it is, then the reaction will occur.

1. Define what a single-replacement reaction is.

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1. Define what a double-replacement reaction is.

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1. Define what a precipitation reaction is.

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1. In chemistry the formation of a gas is symbolized by an up arrow (↑ ). Which symbol will represent a solid formation?

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1. Which is the relation between a “precipitation” reaction and rain “precipitations”?

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1. This chemical equation is balanced:

CuCl_2(aq) + 2AgNO_3(aq) → Cu(NO_3)_2(aq) + 2AgCl(s)

Or what is similar, Lavoisier Law is accomplish because there are same number of atoms at products than reactants.

Is the following equation balanced? Does this equation accomplish Lavoisier Law? Fill the gaps if need it.

____ KI (aq) + ____ Pb(NO_3)_2(aq) → ____ K(NO_3) (aq) + ____ PbI_2 (s)