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Lesson Worksheet: Properties of Sodium and Its Compounds Chemistry

In this worksheet, we will practice describing and explaining the properties of the element sodium and its compounds.

Q1:

Which of the following is not a common use of sodium carbonate?

  • ASodium carbonate is added to silica and other compounds in the production of glass.
  • BPlant material is boiled in sodium carbonate solution in the production of paper.
  • CSodium carbonate is used to soften water by removing magnesium and calcium ions.
  • DSodium carbonate is the main ingredient in oven cleaners and drain-unclogging solutions.
  • ESodium carbonate is used for curing fibers as well as for dyeing and printing in the textile industry.

Q2:

Which of the following equations correctly shows the thermal decomposition of sodium nitrate?

  • A4NaNO()2NaO()+4NO()+3O()322ssgg
  • B3NaNO()3NaN()+2NO()+2.5O()3322ssgg
  • C2NaNO()2Na()+2NO()+O()322ssgg
  • D2NaNO()2NaNO()+O()322ssg

Q3:

Aqueous sodium hydroxide can be used to test for the presence of copper(II) ions in a solution.

What is the color of the copper(II) hydroxide precipitate formed?

  • APale blue
  • BGray
  • CLight green
  • DDeep blue
  • EBrick red

To corroborate the first test, the precipitate is heated and a black solid forms. What is the formula of the black solid?

  • ACuO2
  • BCuSO·5HO42
  • CCuO
  • DCu(OH)2
  • ECuCO3

Q4:

Sodium metal will react with hydrogen, sulfur, phosphorus, and mineral acids.

An example of each of these reactions is shown below; however, certain elements have been obscured. 2Na()+X()2NaX()(1)2Na()+Y()NaY()(2)12Na()+Z()4NaZ()(3)2Na()+2AB()2NaB()+A(4)sgssssssssaqaq22432

Which equation corresponds to the reaction between sodium and a mineral acid?

Which equation corresponds to the reaction between sodium and sulfur?

Which equation corresponds to the reaction between sodium and hydrogen?

Which equation corresponds to the reaction between sodium and phosphorus?

Q5:

Which of the following safety symbols might you see on a container of sodium hydroxide?

  • A
  • B
  • C
  • D
  • E

Q6:

The diagram shows the cyclic nature of the Solvay process, an important industrial process related to sodium carbonate.

Which of the following chemicals is represented by reactant A?

  • ANaCO23
  • BNaCl
  • CCaCO3
  • DCaCl2

Which of the following chemicals is represented by reactant B?

  • ACaCO3
  • BNaCO2
  • CNaCl
  • DCaCl2

Which of the following chemicals is represented by product X?

  • ANaCl
  • BCaCO3
  • CCaCl2
  • DNaCO2

Which of the following chemicals is represented by product Y?

  • ACaCl
  • BCaCO3
  • CNaCO23
  • DNaCl

Q7:

Sodium metal could be prepared from its ore by the electrolysis of molten sodium chloride. Which of the following best describes this process?

  • AChloride ions are oxidized at the cathode and sodium ions are reduced at the anode.
  • BChloride ions are reduced at the anode and sodium ions are oxidized at the cathode.
  • CChloride ions are oxidized at the anode and sodium ions are reduced at the cathode.
  • DChloride ions are reduced at the cathode and sodium ions are oxidized at the anode.

Q8:

Lithium carbonate decomposes at 1,000C according to the equation shown.

LiCO()LiO()+CO()2322ssg

A student attempts a similar experiment using sodium carbonate but does not get a positive result when using limewater to test for carbon dioxide.

Which statement correctly explains why this is the case?

  • ASodium carbonate produces carbon monoxide when it decomposes.
  • BSodium carbonate reacts with water vapor in the air when heated, producing sodium oxide and carbonic acid.
  • CSodium carbonate produces carbon, in the form of soot, and oxygen gas when it decomposes.
  • DSodium carbonate does not thermally decompose.

Q9:

The electrolysis of molten sodium chloride is used industrially for the production of sodium metal, around 100,000 metric tons each year.

Which of the following half-equations accurately describes the reaction that occurs at the anode of the electrolysis cell?

  • A2ClCl+2e2
  • BNa+eNa+
  • C2NaCl2Na+Cl+2
  • DNaNa+e+
  • E2Cl+2eCl2

Which of the following half-equations accurately describes the reaction that occurs at the cathode of the electrolysis cell?

  • ANaNa+e+
  • B2Cl+2eCl2
  • C2NaCl>2Na+Cl+2
  • D2ClCl+2e2
  • ENa+eNa+

Q10:

Sodium hydroxide is one of the commonly known sodium compounds. Which of the following is not a common use of sodium hydroxide?

  • AManufacturing of soap
  • BManufacturing of glass
  • CPurification of petroleum from acidic impurities
  • DDetection of basic radicals, such as Cu2+ and Al3+
  • EManufacturing of paper

This lesson includes 25 additional questions and 6 additional question variations for subscribers.

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