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Chapter 22: Problem 72

Complete and balance the following equations: (a) \(\mathrm{CO}_{2}(g)+\mathrm{OH}^{-}(a q) \longrightarrow\) (b) \(\mathrm{NaHCO}_{3}(s)+\mathrm{H}^{+}(a q) \longrightarrow\) (c) \(\mathrm{CaO}(s)+\mathrm{C}(s) \stackrel{\Delta}{\longrightarrow}\) (d) \(\mathrm{C}(s)+\mathrm{H}_{2} \mathrm{O}(g) \stackrel{\Delta}{\longrightarrow}\) (e) \(\mathrm{CuO}(s)+\mathrm{CO}(g) \longrightarrow\)

Short Answer

Expert verified
(a) \[\mathrm{CO}_{2}(g) + 2\mathrm{OH}^{-}(a q) \longrightarrow \mathrm{H}_{2}\mathrm{O}(l) + \mathrm{CO}_{3}^{2-}(aq)\] (b) \[\mathrm{NaHCO}_{3}(s) + \mathrm{H}^{+}(a q) \longrightarrow \mathrm{Na}^{+}(aq) + \mathrm{H}_{2}\mathrm{O}(l) + \mathrm{CO}_{2}(g)\] (c) \[\mathrm{CaO}(s) + \mathrm{C}(s) \stackrel{\Delta}{\longrightarrow} \mathrm{CaC}_{2}(s) + \mathrm{CO}(g)\] (d) \[\mathrm{C}(s) + \mathrm{H}_{2}\mathrm{O}(g) \stackrel{\Delta}{\longrightarrow} \mathrm{CO}(g) + \mathrm{H}_{2}(g)\] (e) \[\mathrm{CuO}(s) + \mathrm{CO}(g) \longrightarrow \mathrm{Cu}(s) + \mathrm{CO}_{2}(g)\]

Step by step solution

01

(a) Identify the initial products and elements in the equation

For the equation \(\mathrm{CO}_{2}(g)+\mathrm{OH}^{-}(a q) \longrightarrow\), we can see that there are Carbon (C), Oxygen (O), and Hydrogen (H) elements involved in the reaction. Identify the initial count of each element on both sides of the equation.
02

(a) Balance the chemical equation

By placing a coefficient of 2 in front of the \(\mathrm{OH}^-\) sign, we can balance the equation as follows: \[\mathrm{CO}_{2}(g) + 2\mathrm{OH}^{-}(a q) \longrightarrow \mathrm{H}_{2}\mathrm{O}(l) + \mathrm{CO}_{3}^{2-}(aq)\]
03

(b) Identify the initial products and elements in the equation

For the equation \(\mathrm{NaHCO}_{3}(s)+\mathrm{H}^{+}(a q) \longrightarrow\), we have Sodium (Na), Hydrogen (H), Carbon (C), and Oxygen (O) elements involved in the reaction.
04

(b) Balance the chemical equation

Balance the equation as follows: \[\mathrm{NaHCO}_{3}(s) + \mathrm{H}^{+}(a q) \longrightarrow \mathrm{Na}^{+}(aq) + \mathrm{H}_{2}\mathrm{O}(l) + \mathrm{CO}_{2}(g)\]
05

(c) Identify the initial products and elements in the equation

For the equation \(\mathrm{CaO}(s)+\mathrm{C}(s) \stackrel{\Delta}{\longrightarrow}\), we have Calcium (Ca), Oxygen (O), and Carbon (C) elements involved in the reaction.
06

(c) Balance the chemical equation

Balance the equation as follows: \[\mathrm{CaO}(s) + \mathrm{C}(s) \stackrel{\Delta}{\longrightarrow} \mathrm{CaC}_{2}(s) + \mathrm{CO}(g)\]
07

(d) Identify the initial products and elements in the equation

For the equation \(\mathrm{C}(s)+\mathrm{H}_{2} \mathrm{O}(g) \stackrel{\Delta}{\longrightarrow}\), we have Carbon (C), Hydrogen (H), and Oxygen (O) elements involved in the reaction.
08

(d) Balance the chemical equation

Balance the equation as follows: \[\mathrm{C}(s) + \mathrm{H}_{2}\mathrm{O}(g) \stackrel{\Delta}{\longrightarrow} \mathrm{CO}(g) + \mathrm{H}_{2}(g)\]
09

(e) Identify the initial products and elements in the equation

For the equation \(\mathrm{CuO}(s)+\mathrm{CO}(g) \longrightarrow\), we have Copper (Cu), Oxygen (O), and Carbon (C) elements involved in the reaction.
10

(e) Balance the chemical equation

Balance the equation as follows: \[\mathrm{CuO}(s) + \mathrm{CO}(g) \longrightarrow \mathrm{Cu}(s) + \mathrm{CO}_{2}(g)\]

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Most popular questions from this chapter

The maximum allowable concentration of \(\mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})\) in air is \(20 \mathrm{mg}\) per kilogram of air ( 20 ppm by mass). How many grams of FeS would be required to react with hydrochloric acid to produce this concentration at \(1.00 \mathrm{~atm}\) and \(25^{\circ} \mathrm{C}\) in an average room measuring \(2.7 \times 4.3 \times 4.3 \mathrm{~m}\) ? (Under these conditions, the average molar mass of air is \(29.0 \mathrm{~g} / \mathrm{mol}\).)

Consider the elements \(\mathrm{O}, \mathrm{Ba}, \mathrm{Co}, \mathrm{Be}, \mathrm{Br}\), and Se. From this list select the element that (a) is most electronegative, (b) exhibits a maximum oxidation state of \(+7\), (c) loses an electron most readily, (d) forms \(\pi\) bonds most readily, (e) is a transition metal.

(a) How many grams of \(\mathrm{H}_{2}\) can be stored in \(10.0 \mathrm{lb}\) of the alloy FeTi if the hydride \(\mathrm{FeTiH}_{2}\) is formed? (b) What volume does this quantity of \(\mathrm{H}_{2}\) occupy at STP?

Complete and balance the following equations: (a) \(\mathrm{MnO}_{4}^{-}(a q)+\mathrm{H}_{2} \mathrm{O}_{2}(a q)+\mathrm{H}^{+}(a q) \longrightarrow\) (b) \(\mathrm{Fe}^{2+}(a q)+\mathrm{H}_{2} \mathrm{O}_{2}(a q) \longrightarrow\) (c) \(\mathrm{I}^{-}(a q)+\mathrm{H}_{2} \mathrm{O}_{2}(a q)+\mathrm{H}^{+}(a q) \longrightarrow\) (d) \(\mathrm{Cu}(s)+\mathrm{H}_{2} \mathrm{O}_{2}(a q)+\mathrm{H}^{+}(a q) \longrightarrow\) (e) \(\mathrm{I}^{-}(a q)+\mathrm{O}_{3}(g) \longrightarrow \mathrm{I}_{2}(s)+\mathrm{O}_{2}(g)+\mathrm{OH}^{-}(a q)\)

Complete and balance the following equations: (a) \(\mathrm{ZnCO}_{3}(s) \stackrel{\Delta}{\longrightarrow}\) (b) \(\mathrm{BaC}_{2}(s)+\mathrm{H}_{2} \mathrm{O}(l) \longrightarrow\) (c) \(\mathrm{C}_{2} \mathrm{H}_{2}(g)+\mathrm{O}_{2}(g) \longrightarrow\) (d) \(\mathrm{CS}_{2}(g)+\mathrm{O}_{2}(g) \longrightarrow\) (e) \(\mathrm{Ca}(\mathrm{CN})_{2}(s)+\mathrm{HBr}(a q) \longrightarrow\)
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