Chapter 4: Q4.87P (page 181)

Balance each of the following redox reactions and classify it as a combination, decomposition, or displacement reaction:
$(a) C a (s) + H_{2} O (l) \to C a {(O H)}_{2} (a q) + H_{2} (g)$
$(b) N a N O_{3} (s) \to N a N O_{2} (s) + O_{2} (g)$
$(c) C_{2} H_{2} (g) + H_{2} (g) \to C_{2} H_{6} (g)$

Short Answer

Expert verified

The classifications of the given reactions are:

(a) Displacement reaction

(b)Decomposition reaction

Step by step solution

Write balanced reaction of equation (a)

The given reaction is:

$C a (s) + H_{2} O (l) \to C a {(O H)}_{2} (a q) + H_{2} (g)$

The balanced reaction is:

$C a (s) + 2 H_{2} O (l) \to C a {(O H)}_{2} (a q) + H_{2} (g)$

The given redox reaction is a displacement reaction.

The calcium atom replaces two hydrogen atoms and forms $C a {(O H)}_{2} .$

Write balanced reaction of equation (b)

The given reaction is:

$N a N O_{3} (s) \to N a N O_{2} (s) + O_{2} (g)$

The balanced reaction is:

$2 N a N O_{3} (s) \to 2 N a N O_{2} (s) + O_{2} (g)$

The given redox reaction is a decomposition reaction.

In this reaction, $N a N O_{3}$ decomposes and forms $N a N O_{2}$ and $O_{2} .$

Write balanced reaction of equation (c)

The given reaction is:

$C_{2} H_{2} (g) + H_{2} (g) \to C_{2} H_{6} (g)$

The balanced reaction is:

$C_{2} H_{2} (g) + 2 H_{2} (g) \to C_{2} H_{6} (g)$

The given redox reaction is a combination reaction.

In this reaction, $C_{2} H_{2}$ and $H_{2}$ combines and forms $C_{2} H_{6} .$

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Balance each of the following redox reactions and classify it as a combination, decomposition, or displacement reaction:
$(a) C a (s) + H_{2} O (l) \to C a {(O H)}_{2} (a q) + H_{2} (g)$
$(b) N a N O_{3} (s) \to N a N O_{2} (s) + O_{2} (g)$
$(c) C_{2} H_{2} (g) + H_{2} (g) \to C_{2} H_{6} (g)$

Short Answer

Step by step solution

Write balanced reaction of equation (a)

Write balanced reaction of equation (b)

Write balanced reaction of equation (c)

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Balance each of the following redox reactions and classify it as a combination, decomposition, or displacement reaction:aCas+H2Ol→CaOH2aq+H2gbNaNO3s→NaNO2s+O2gcC2H2g+H2g→C2H6g

Short Answer

Step by step solution

Write balanced reaction of equation (a)

Write balanced reaction of equation (b)

Write balanced reaction of equation (c)

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Physical Chemistry

Nuclear Chemistry

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Inorganic Chemistry

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Kinetics

Study anywhere. Anytime. Across all devices.

Balance each of the following redox reactions and classify it as a combination, decomposition, or displacement reaction:
$(a) C a (s) + H_{2} O (l) \to C a {(O H)}_{2} (a q) + H_{2} (g)$
$(b) N a N O_{3} (s) \to N a N O_{2} (s) + O_{2} (g)$
$(c) C_{2} H_{2} (g) + H_{2} (g) \to C_{2} H_{6} (g)$