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Chapter 4: Q13E (page 216)

Indicate what type or types of reaction each of the following represents:

(a) \(\)\(Ca\left( s \right) + B{r_2}\left( l \right) \to CaB{r_2}\left( s \right)\)

(b) \(Ca{\left( {OH} \right)_2} + 2HBr\left( {aq} \right) \to CaB{r_2}\left( {aq} \right) + 2{H_2}O\left( l \right)\)

(c) \({C_6}{H_{12}}\left( l \right) + 9{O_2}\left( g \right) \to 6C{O_2}\left( g \right) + 6{H_2}O\left( l \right)\)\(\)

Short Answer

Expert verified

(a) Oxidation-reduction reaction

(b) Acid-base reaction

(c) Oxidation-reduction reaction (combustion)

Step by step solution

01

Oxidation-reduction reaction (a)

The calcium atom is oxidized from 0 to +2 state by the liquid bromine, while bromine is reduced from 0 to -1 state. Hence, it is anoxidation-reduction (redox) reaction.

02

Neutralisation reaction (b)

There is a transfer of hydrogen and hydroxyl ions between the reactants to form calcium bromide salt and water. Hence, it is an acid-base neutralization reaction.

03

Combustion reaction(c)

The carbon is oxidized from -2 to +4 state and the oxygen is reduced from 0 to -2 state. Hence, it is anoxidation-reduction (redox) reaction.

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Most popular questions from this chapter

Outline the steps needed to solve the following problem, then do the calculations. Ether,\({\left( {{C_2}{H_5}} \right)_2}O\), which was originally used as an anesthetic but has been replaced by safer and more effective medications, is prepared by the reaction of ethanol with sulfuric acid.\(2{C_2}{H_5}OH + {H_2}S{O_4} \to \left( {{C_2}{H_5}} \right)2O + {H_2}S{O_4} \cdot {H_2}O\)What is the percent yield of ether if 1.17 L (d = 0.7134 g/mL) is isolated from the reaction of 1.500 L of C2H5OH (d = 0.7894 g/mL)?

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Write a balanced molecular equation describing each of the following chemical reactions.

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