Types of Chemical Reactions
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Questions and Answers

Name five general types of chemical reactions.

Synthesis, Decomposition, Single replacement, Double replacement, and Combustion.

What is the general form of a synthesis reaction?

A + B >>>> AB

What is the general form of a decomposition reaction?

AB >>>> A + B

What is the general form of a single replacement reaction?

<p>A + BC &gt;&gt;&gt;&gt; B + AC</p> Signup and view all the answers

What is the general form of a double replacement reaction?

<p>AB + CD &gt;&gt;&gt;&gt; AD + CB</p> Signup and view all the answers

Write an equation that represents a synthesis reaction.

<p>2Na + Cl2 &gt;&gt;&gt;&gt; 2NaCl; 2H2 + O2 &gt;&gt;&gt;&gt; 2H2O</p> Signup and view all the answers

Write the equation for the decomposition of calcium carbonate into calcium oxide and carbon dioxide.

<p>CaCO3 &gt;&gt;&gt;&gt; CaO + CO2</p> Signup and view all the answers

What are the products when copper reacts with silver nitrate in a single-replacement reaction?

<p>Copper(II) nitrate and Silver</p> Signup and view all the answers

What is a double-replacement reaction?

<p>A double-replacement reaction is a reaction in which two different compounds exchange positive ions and form two new compounds.</p> Signup and view all the answers

What are the general forms of a single-replacement reaction?

<p>A + BC &gt;&gt;&gt;&gt; B + AC</p> Signup and view all the answers

What are the general forms of a double-replacement reaction?

<p>AB + CD &gt;&gt;&gt;&gt; AD + CB</p> Signup and view all the answers

Write the balanced equation for the double-replacement reaction between lead(II) nitrate and potassium iodide.

<p>Pb(NO3)2 + 2KI &gt;&gt;&gt;&gt; PbI2 + 2KNO3</p> Signup and view all the answers

What are the products of the double-replacement reaction between calcium carbonate and hydrochloric acid?

<p>Calcium chloride and carbonic acid.</p> Signup and view all the answers

Write the balanced equation for the combustion of methane in oxygen.

<p>CH4 + 2O2 &gt;&gt;&gt;&gt; CO2 + 2H2O</p> Signup and view all the answers

What is an oxidation-reduction reaction?

<p>An oxidation-reduction reaction is a reaction in which electrons are transferred from one reactant to another.</p> Signup and view all the answers

In the reaction where calcium reacts with oxygen to form calcium oxide, which reactant is oxidized?

<p>Calcium</p> Signup and view all the answers

The process in which an element gains electrons during a chemical reaction is called?

<p>Reduction</p> Signup and view all the answers

Study Notes

Types of Chemical Reactions

  • Five general types of chemical reactions: Synthesis, Decomposition, Single Replacement, Double Replacement, and Combustion.

Synthesis Reactions

  • General form: A + B >>>> AB.
  • Examples:
    • 2Na + Cl2 >>>> 2NaCl
    • 2H2 + O2 >>>> 2H2O

Decomposition Reactions

  • General form: AB >>>> A + B.
  • Example: CaCO3 >>>> CaO + CO2.

Single Replacement Reactions

  • General form: A + BC >>>> B + AC.
  • Reaction between copper and silver nitrate produces:
    • Copper(II) nitrate and Silver.

Double Replacement Reactions

  • General form: AB + CD >>>> AD + CB.
  • Definition: Two different compounds exchange positive ions forming two new compounds.

Balanced Double Replacement Example

  • Lead(II) nitrate reacts with potassium iodide:
    • Pb(NO3)2 + 2KI >>>> PbI2 + 2KNO3.
  • Calcium carbonate reacts with hydrochloric acid produces:
    • Calcium chloride (CaCl2) and carbonic acid (H2CO3).

Combustion Reactions

  • Combustion of methane:
    • CH4 + 2O2 >>>> CO2 + 2H2O.

Oxidation-Reduction Reactions

  • Involves transfer of electrons from one reactant to another.
  • Calcium is oxidized when it reacts with oxygen to form calcium oxide.
  • The process of gaining electrons in a chemical reaction is referred to as Reduction.

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Description

Explore the five general types of chemical reactions including Synthesis, Decomposition, Single Replacement, Double Replacement, and Combustion. This quiz will test your understanding of the definitions, general forms, and examples of each reaction type.

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