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Predict the product(s) and write a balanced equation for each of the following redox reactions:

(a)N2(g)+H2(g)

(b)NaClO3(s)Δ

(c)Ba(s)+H2O(l)

Short Answer

Expert verified

The product and the balance equation of the given reactions are:

(a)N2(g)+3H2(g)2NH3(g)

(b)NaClO3(s)Δ2NaCl(s)+3O2(g)

(c)Ba(s)+2H2O(l)Ba(OH)2(aq)+H2(g)

Step by step solution

01

Determine the product of the equation (a)

The given redox reaction is a combination reaction.

Nitrogen combines with hydrogen and forms ammonia.

The given reaction is:

N2(g)+H2(g)

The balanced reaction is:

N2(g)+3H2(g)2NH3(g)

02

 Step 2: Determine the product of the equation (b)

The given redox reaction is a decomposition reaction.

Sodium chloratedecomposes and forms sodium chloride and oxygen.

The given reaction is:

NaClO3(s)Δ

The balanced reaction is:

NaClO3(s)Δ2NaCl(s)+3O2(g)

03

Determine the product of the equation (c) 

The given redox reaction is a displacement reaction.

Hydrogen is displaced by Barium to formBa(OH)2

The given reaction is:

Ba(s)+H2O(l)

The balanced reaction is:

Ba(s)+2H2O(l)Ba(OH)2(aq)+H2(g)

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Most popular questions from this chapter

Sodium hydroxide is used extensively in acid-base titrations because it is a strong, inexpensive base. A sodium hydroxide solution was standardized by titrating 25.00 mL of 0.1528 M standard hydrochloric acid. The initial buret reading of the sodium hydroxide was 2.24 mL, and the final reading was 39.21 mL. What was the molarity of the base solution?

Question: Zinc hydroxide is insoluble in water but dissolves when a nitric acid solution is added. Why? Write balanced total ionic and net ionic equations, showing nitric acid as it actually exists in water and the reaction as a proton-transfer process.

The active compound in Pepto-Bismol contains C, H, O, and Bi.

(a) When 0.22105 g of it was burned in excess O2, 0.1422 g of bismuth(III) oxide, 0.1880 g of carbon dioxide, and 0.02750 g of water were formed. What is the empirical formula of this compound?

(b) Given a molar mass of 1086 g/mol, determine the molecular formula.

(c) Complete and balance the acid-base reaction between bismuth(III) hydroxide and salicylic acid (HC7H5O3), which is used to form this compound.

(d) A dose of Pepto-Bismol contains 0.600 mg of the active ingredient. If the yield of the reaction in part (c) is 88.0%, what mass (in mg) of bismuth(III) hydroxide is required to prepare one dose?

Mixtures of CaCl2 and NaCl are used to melt ice on roads. A dissolved 1.9348-g sample of such a mixture was analyzed by using excess Na2C2O4 to precipitate the Ca2+ as CaC2O4. The CaC2O4 was dissolved in sulfuric acid, and the resulting H2C2O4 was titrated with 37.68mL of 0.1019M KMnO4 solution.

(a) Write the balanced net ionic equation for the precipitation reaction.

(b) Write the balanced net ionic equation for the titration reaction. (See Sample Problem 4.11.)

(c) What is the oxidizing agent?

(d) What is the reducing agent?

(e) Calculate the mass percent of CaCl2 in the original sample.

Water “softeners” remove metal ions such as and by replacing them with enough ions to maintain the same number of positive charges in the solution. If 1.0 x 103 L of “hard” water is 0.015 M and 0.0010 M how many moles of are needed to replace these ions?

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