Unit 5 (bonding & naming) Review

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1) An unknown black/purple substance is placed in water and the water turns purple after mixing but there are also black chunks at the bottom of the beaker. When the solution is tested with a light bulb (conductivity) apparatus, the light bulb does not light up. What type(s) of bond(s) are present in the substance and explain how you know this. 2) Explain why are substances that contain metallic bonds such good conductors of electricity.

3) Explain why ionic substances cannot conduct electricity when not dissolved in water.

What type of bond and what type of electron interaction occurred in the compound CaCl2 ?

1. 2. 3. 4.

81%

14%5%

0%

1. Ionic – Transferred2. Covalent –

Transferred3. Covalent – Shared4. Ionic - Shared

If an unknown chemical compound is placed in water and the solution turns color (the light bulb doesn’t light) but after mixing, there is some material on the bottom, what can be said about this compound?

1. 2. 3. 4.

17%13%

4%

65%

1. Polar Covalent2. Mix of polar and

nonpolar Covalent3. Mix of ionic and

nonpolar 4. Nonpolar covalent

What type of compounds do not conduct any electricity and are not soluble in water?

1. 2. 3. 4.

95%

5%0%0%

1. Nonpolar Covalent2. Polar Covalent3. Ionic4. Metallic

What is the correct formula for carbon tetrachloride?

1. 2. 3. 4. 5. 6.

0%

100%

0%0%0%0%

1. C4Cl

2. CCl4

3. C2Cl4

4. Cl4C

5. ClC4

6. CCl10

What is the chemical name of H2S03?

1. 2. 3. 4. 5.

9%

65%

0%

22%

4%

1. sulfuric acid2. sulfurous acid3. hydrosulfuric acid4. hyposulfurous acid5. persulfuric acid

What is the chemical name of H3P05?

1. 2. 3. 4. 5.

4% 4%

87%

4%0%

1. phosphoric acid2. phosphorous acid3. hydrophosphoric acid4. hypophosphorous acid5. perphosporic acid

What is the chemical name of Fe2(SO2)3?

1. 2. 3. 4. 5.

0%

9%

0%0%

91%1. iron hyposulfite2. iron (II) hyposulfite3. iron (III) hyposulfite4. diiron trihyposulfite5. not listed

What is the chemical name of Cd(NO4)2?

1. 2. 3. 4. 5.

0%

30%

65%

4%0%

1. cadmium (I) pernitrate2. cadmium (II) pernitrate3. cadmium (III) pernitrate4. cadmium (IV) pernitrate5. not listed

What is the chemical name of Pb(CrO4)2?

1. 2. 3. 4. 5.

0%

48%

5%

48%

0%

1. lead (I) chromate2. lead (II) chromate3. lead (III) chromate4. lead (IV) chromate5. not listed

What is the chemical name of HClO?

1. 2. 3. 4. 5.

0% 0% 0%

82%

18%

1. chloric acid2. chlorous acid3. hydrochloric acid4. hypochlorous acid5. perchloric acid

What is the chemical name of H2CO3?

1. 2. 3. 4. 5.

62%

19%

5%0%

14%

1. carbonic acid2. carbonous acid3. hydrocarbonic acid4. hypocarbonous acid5. percarbonic acid

What is the chemical name of Al(OH)3?

1. 2. 3. 4. 5.

64%

0% 0%

14%

23%

1. aluminum hydroxide2. aluminum oxygen hydrogen 33. aluminum (III) hydroxide4. aluminum trihydroxide5. aluminum hydride

If a chemical compound has high conductivity in solution (lights a 60 watt light bulb), high melting point, and is water soluble what type of bond is occurring?

1. 2. 3. 4.

91%

5%0%

5%

1. Ionic 2. Polar Covalent3. Nonpolar Covalent4. Metallic

What type of compound has low conductivity in solution (meter readings between 1 – 16; doesn’t light up a light bulb apparatus) and is soluble in H2O?

1. 2. 3. 4.

10%

0%5%

85%

1. Nonpolar Covalent2. Polar Covalent3. Ionic4. Metallic

What type of bond is occurring when Fe (iron) atoms and Ni (nickel) atoms bond together?

1. 2. 3. 4. 5.

90%

5% 5%0%0%

1. Ionic2. Covalent3. Metallic4. Polar Covalent5. Nonpolar Covalent