An Introduction to Physical Science

James T. Shipman, Jerry D. Wilson, Charles A. Higgins, Jr.

Chapter 13 Chemical Reactions - all with Video Answers

Educators

Chapter Questions

14:14

Problem 1

Balance these chemical equations. (Each answer shows the correct coefficients in order.)
(a) $\mathrm{CuCl}_{2}+\mathrm{H}_{2} \longrightarrow \mathrm{Cu}+\mathrm{HCl}$
(b) $\mathrm{Fe}+\mathrm{O}_{2} \rightarrow \mathrm{Fe}_{2} \mathrm{O}_{3}$
(c) $\mathrm{Al}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}+\mathrm{H}_{2}$
(d) $\mathrm{CaC}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Ca}(\mathrm{OH})_{2}+\mathrm{C}_{2} \mathrm{H}_{2}$
(e) $\mathrm{KNO}_{3} \rightarrow \mathrm{KNO}_{2}+\mathrm{O}_{2}$
(f) $\mathrm{C}_{6} \mathrm{H}_{6}+\mathrm{O}_{2} \longrightarrow \mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}$

Matthew Lueckheide

Numerade Educator

04:18

Problem 2

Balance these chemical equations.
(a) $\mathrm{SO}_{2}+\mathrm{O}_{2} \longrightarrow \mathrm{SO}_{3}$
(b) $\mathrm{NH}_{3}+\mathrm{O}_{2} \longrightarrow \mathrm{N}_{2}+\mathrm{H}_{2} \mathrm{O}$
(c) $\mathrm{C}_{4} \mathrm{H}_{10}+\mathrm{O}_{2} \longrightarrow \mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}$
(d) $\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \rightarrow \mathrm{PbO}+\mathrm{NO}_{2}+\mathrm{O}_{2}$
(e) $\mathrm{Al}+\mathrm{Fe}_{3} \mathrm{O}_{4} \longrightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{Fe}$
(f) $\mathrm{Sr}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Sr}(\mathrm{OH})_{2}+\mathrm{H}_{2}$

Farhana Sharmin

Numerade Educator

02:10

Problem 3

Identify any combination or decomposition reactions in Exercise 1

Susan Hallstrom

Numerade Educator

02:10

Problem 4

Identify any combination or decomposition reactions in Exercise 2.

Susan Hallstrom

Numerade Educator

01:39

Problem 5

(a) Nitrogen and hydrogen react to give ammonia in a combination reaction. Write and balance the equation.
(b) Electrolysis can decompose KCl into its elements. Write and balance the equation.

Lottie Adams

Numerade Educator

01:23

Problem 6

(a) Calcium and chlorine react to give calcium chloride in a combination reaction. Write and balance the equation.
(b) Heating decomposes $\mathrm{Na}_{2} \mathrm{CO}_{3}$ to sodium oxide and carbon dioxide. Write and balance the equation.

Ronald Prasad

Numerade Educator

00:55

Problem 7

Write and balance the reaction for the complete combustion of pentane, $\mathrm{C}_{5} \mathrm{H}_{12}$.

Susan Hallstrom

Numerade Educator

01:13

Problem 8

Write and balance the reaction for the complete combustion of butane, $\mathrm{C}_{4} \mathrm{H}_{10}$.

David Collins

Numerade Educator

01:50

Problem 9

Complete and balance the following acid-base and acid-carbonate reactions:
(a) $\mathrm{HNO}_{3}+\mathrm{KOH} \rightarrow$
(b) $\mathrm{HC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}+\mathrm{K}_{2} \mathrm{CO}_{3} \rightarrow$
(c) $\mathrm{H}_{3} \mathrm{PO}_{4}+\mathrm{NaOH} \longrightarrow$
(d) $\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{CaCO}_{3} \longrightarrow$

David Collins

Numerade Educator

04:25

Problem 10

Complete and balance the following acid-base and acid-carbonate reactions:
(a) $\mathrm{HCl}+\mathrm{Ba}(\mathrm{OH})_{2} \rightarrow$
(b) $\mathrm{HCl}+\mathrm{Al}_{2}\left(\mathrm{CO}_{3}\right)_{3} \longrightarrow$
(c) $\mathrm{H}_{3} \mathrm{PO}_{4}+\mathrm{LiHCO}_{3} \rightarrow$
(d) $\mathrm{Al}(\mathrm{OH})_{3}+\mathrm{H}_{2} \mathrm{SO}_{4} \longrightarrow$

Nicholas White

Numerade Educator

03:15

Problem 11

Complete and balance the following double-replacement reactions. (Hint: Information in Table 13.5 will help you identify the precipitate.
(a) $\mathrm{AgNO}_{3}(a q)+\mathrm{HCl}(a q) \longrightarrow$
(b) $\mathrm{BaCl}_{2}(a q)+\mathrm{K}_{2} \mathrm{CO}_{3}(a q) \longrightarrow$

Raghvendra Singh

Numerade Educator

03:15

Problem 12

Complete and balance the following double-replacement reactions. (Hint: Information in Table 13.5 will help you identify the precipitate.
(a) $\mathrm{K}_{2} \mathrm{SO}_{4}(a q)+\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}(a q) \rightarrow$
(b) $\mathrm{K}_{3} \mathrm{PO}_{4}(a q)+\mathrm{CaBr}_{2}(a q) \rightarrow$

Raghvendra Singh

Numerade Educator

02:25

Problem 13

Refer to the activity series (Table 13.6 ) and predict in each case whether the single-replacement reaction shown will, or will not, actually occur.
(a) $\mathrm{Cu}(\mathrm{s})+\mathrm{Mg}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{aq}) \rightarrow \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{aq})+\mathrm{Mg}(\mathrm{s})$
(b) $\mathrm{Ni}+\mathrm{CuBr}_{2}(a q) \longrightarrow \mathrm{Cu}+\mathrm{NiBr}_{2}(a q)$
(c) $2 \mathrm{Al}+6 \mathrm{HCl}(a q) \longrightarrow 3 \mathrm{H}_{2}+2 \mathrm{AlCl}_{3}(a q)$

Crystal Wang

Numerade Educator

02:03

Problem 14

Refer to the activity series (Table 13.6 ) and predict in each case whether the single-replacement reaction shown will, or will not, actually occur.
(a) $\mathrm{Zn}+\mathrm{Fe}\left(\mathrm{NO}_{3}\right)_{2}(a q) \longrightarrow \mathrm{Fe}+\mathrm{Zn}\left(\mathrm{NO}_{3}\right)_{2}(a q)$
(b) $\mathrm{Pb}+\mathrm{FeCl}_{2}(a q) \longrightarrow \mathrm{Fe}+\mathrm{PbCl}_{2}(a q)$
(c) $2 \mathrm{Ag}+2 \mathrm{HNO}_{3}(a q) \longrightarrow \mathrm{H}_{2}+2 \mathrm{AgNO}_{3}(a q)$

Ronald Prasad

Numerade Educator

01:45

Problem 15

Refer to the activity series (Table 13.6 ). Complete and balance the equation for the following single-replacement reactions.
(a) $\mathrm{Ni}+\mathrm{Pt}\left(\mathrm{NO}_{3}\right)_{2}(a q) \rightarrow$
(b) $\mathrm{Zn}+\mathrm{H}_{2} \mathrm{SO}_{4}(a q) \longrightarrow$

Raghvendra Singh

Numerade Educator

02:42

Problem 16

Refer to the activity series (Table 13.6 ). Complete and balance the equation for the following single replacement reactions.
(a) $\mathrm{Mg}+\mathrm{HCl}(a q) \rightarrow$
(b) $\mathrm{Al}+\mathrm{AgNO}_{3}(a q) \longrightarrow$

Adriano Chikande

Numerade Educator

01:36

Problem 17

Two moles of hydrogen sulfide, $\mathrm{H}_{2} \mathrm{S}$, would consist of how many molecules?

Susan Hallstrom

Numerade Educator

04:10

Problem 18

Four moles of sulfur dioxide, $\mathrm{SO}_{2},$ would consist of how many molecules?

Shalini Tyagi

Numerade Educator

03:56

Problem 19

Fill in the blanks in the following table for the element sodium, $\mathrm{Na}$.

Dr. Satish Ingale

Numerade Educator

08:51

Problem 20

Fill in the blanks in the following table for the compound carbon dioxide, $\mathrm{CO}_{2}$.
$$\begin{array}{lll}
\hline \text { Moles } & \text { Molecules } & \text { Mass } \\
\hline 3.00 & & \\
\hline & & 44.0 \mathrm{g} \\
\hline & 3.01 \times 10^{23} & \\
\hline
\end{array}$$