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387 Video Solutions

When asked what causes electrolyte solutions to conduct electricity, a student responds that it is due to the movement of electrons through the solution. Is the student correct? If not, what is the correct response?

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If you want to double the concentration of a solution, how could you do it?

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Which of the following ions will always be a spectator ion in a precipitation reaction? (a) Cl, (b) NO3, (c) NH4+, (d) S2–, (e) SO42–. Explain briefly.

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A 0.1 M solution of acetic acid, CH3COOH, causes the lightbulb in the apparatus of Figure 4.2 to glow about as brightly as a 0.001 M solution of HBr. How do you account for this fact?

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Which of the following schematic drawings best describes a solution of Li2SO4 in water (water molecules not shown for simplicity)?

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Give the names and charges of the cation and anion in each of the following compounds: (e) PbCO3

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Give the names and charges of the cation and anion in each of the following compounds: (d) Co(OH)2

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Give the names and charges of the cation and anion in each of the following compounds: (c) Al(ClO3)3

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Give the names and charges of the cation and anion in each of the following compounds: (b) Ag2SO4

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Give the names and charges of the cation and anion in each of the following compounds: (a) CuS

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Selenium, an element required nutritionally in trace quantities, forms compounds analogous to sulfur. Name the following ions: (d) HSeO3

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Selenium, an element required nutritionally in trace quantities, forms compounds analogous to sulfur. Name the following ions: (c) HSe

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Selenium, an element required nutritionally in trace quantities, forms compounds analogous to sulfur. Name the following ions: (b) Se2–

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Selenium, an element required nutritionally in trace quantities, forms compounds analogous to sulfur. Name the following ions: (a) SeO42–

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Give the chemical formula for (e) hypochlorite ion

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Give the chemical formula for (d) perchlorate ion

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Give the chemical formula for (c) chlorate ion

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Give the chemical formula for (b) chloride ion

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Give the chemical formula for (a) chlorite ion

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State whether the following is ionic or molecular: (e) FeCl3

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State whether the following is ionic or molecular: (d) Ca(NO3)2

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State whether the following is ionic or molecular: (c) SCl2

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State whether the following is ionic or molecular: (b) NaI

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Which of the following are ionic, and which are molecular? (a) PF5

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Predict whether each of the following compounds is molecular or ionic: (c) CsBr

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